A from A to C
description
Transcript of A from A to C
The illustration shows an open circuit. In order to close the circuit and turn on the light a piece of wire needs to be added from
A from A to C B from A to DC from B to C D from C to D
B from A to D
What is the operating principal of a series circuit?
In a series circuit, electricity has only one path to follow. If any part of that path fails (breaks) and opens the circuit, everything on the circuit stops working.
What is the operating principal of a series circuit?
In a parallel circuit, electricity has more than one path to follow. If any part of that path fails (breaks) the other branches can still work.
The light bulb in the following illustration that will light is
AB
DC
A
No, this is an open circuit. Electricity cannot flow through an open circuit.
BNo, this is also an open circuit.
CYes, this is a closed circuit through which electricity can flow.
D
Nope, another open circuit.
The phrase, “Opposites attract and likes repel” applies to static electricity as well as magnetism.
Like charges cause objects to be repelled from each other.
Unlike charge causes objects to be attracted to each other.
Lightning is a very powerful form of static electric discharge.
One lightning bolt can have from 1-10 million volts of static electricity. The temperature at the core can be as high as 30,000°C.
Which position in the following slide shows the correct position for reading the volume of a liquid in a graduated cylinder?
A 1 B 2 C 3 D 4
The correct position for reading the volume of a liquid in a graduated cylinder number 3 so the bottom of the meniscus is at eye level.
Identify the numbered wave characteristics
wavelength
trough
amplitude
crest
The following slide shows an experiment set up to test the hypothesis that plants grow better in green light. What is the independent variable (a/k/a the manipulated variable)?
Red Green
Yellow
Trial 1
Trial 2 Trial 3
The independent variable (a/k/a the manipulated variable) is the color of light.What change in the set-up would produce more reliable results?
Using only one type of plant would produce more reliable results.
What change in the set-up would produce more reliable results?
A plant grown under ordinary light.
What should be used as the control for the experiment?
List in the correct order the energy conversions that occur after the flashlight’s switch is put in the “on” position.
Stored chemical energy to electrical energy to light energy (and heat energy).
Which wire has a higher resistance to the flow of electricity?
A
B
BWire B has more resistance to the flow of electricity. The thinner and or longer the wire the greater the resistance.
The following slides show an experiment set up to test the electrical con-ductivity of different sub-stances. Of the substances tested, which would make the best conductor to complete the circuit so the bulb will light?
In this experiment, aluminum was the best conductor.
The graph in this illustration is a ___ graph.
The graph in this illustration is a bar graph.
This line graph above
shows the heights of
plants grown in fertilized
and unfertiliz
ed soil.
F. Neither plant should increase by 1 cm in height.G. Plant A should increase about 1 cm in height.H. Plant B should increase about 1 cm in height.J. Plant A should increase about 2 cm in height.
Based on this data, what will most likely happen on day six?
F. Neither plant should increase by 1 cm in height.
B
In which illustration are the skateboarder’s kinetic energy and potential energy about equal?
The skateboarder’s kinetic energy and potential energy are about equal in illustration B.
A
The chart in the following slide represents the type and number of items collected in a beach cleanup. Based on the chart, what percentage of the total items collected from the beaches was plastic?
A 46% B 49% C 56% D 70%
Circle Graph
C. 56%
This illustration shows a pond ecosystem. What would most likely happen if all the lily plants were removed from this community?
F There would be more oxygen in the air.
G The pond currents would be slower.
H There would be more kinds of animals in the pond.
J The animals would have fewer places to hide.
J The animals would have fewer places to hide.
Both bulbs are lit in the circuit above. In order to turn off both lights, a switch must be installed in the circuit in the position marked
Which illustration best shows the reflection of light?A B C
D
Illustration D represents reflection
Which of the following illustrations shows the refraction of light as it enters water from the air?
The ray of light will refract as shown. As the light goes from a less dense medium into a more dense medium it will slow down and refract toward the normal.
normal
This is what is known in science as a “bad hair day.”
Why are the strands of the girl’s hair are spreading apart from each other?
The strands of the girl’s hair are spreading apart from each other because they have the same charge and like charges repel.
The phrase opposites attract applies to magnetism as well as static electricity.
The force of attraction is strongest at the poles where the magnetic fields are the strongest.
The phrase “like repel” also applies to magnetism as well as static electricity.
The force of repulsion is strongest at the poles where the magnetic fields are the strongest.
In this illustration, where will the magnetic field be the strongest?
The magnetic field of a magnet is strongest at position 1.
The magnetic field of a magnet is strongest at the poles; position 1 is closest to a pole.
A magnet’s lines of force are three dimensional.
Magnetic domains not aligned.
Magnetic domains aligned.
Between points 4 and 5, energy is being used to change water from aA solid to a
liquidB solid to a gas
C liquid to a gasD liquid to a solid
C liquid to a gas
Between points 4 and 5, energy is being used to change water from a
Between what two points is energy being absorbed by the water while temperature remains constant?
A 1 to 2B 2 to 3C 3 to 4D 5 to 6
B 2 to 3
Between what two points is energy being absorbed by the water while temperature remains constant?
Between points 4 and 5, the change of state (a/k/a phase change) taking place is
A vaporizationB evaporationC freezingD melting
A vaporization
Between points 3 and 4, the water is in which state or phase of matter?
A solid B liquid
C gasD none of the preceding
B li
quid
Between which two points is the water a gas (or vapor)?
A 2 and 3
B 3 and 4C 4 and 5
D 5 and 6
D 5 and 6
A
DC
B
An experiment was set up to measure the distance a snail would travel in 5 minutes. Which of these rulers should to give the most precise measurement?
D
Ruler D would to give the most precise measurement.
D
Ruler D measures in SI units and marked in units of 0.1 centimeters (a/k/a millimeters).
The pictures shows how to make an electromagnet. Which of the following would make the electromagnet stronger?
A using a longer wire from the battery to the nailB wrapping the wire around the nail more timesC wrapping the wire around a nonmetallic objectD making the loops of wire less tightly wrapped
The pictures shows how to make an electro-magnet. Which of the following would make the electromagnet stronger?
B wrapping the wire around the nail more times
Also, increasing the current flowing through the wire or using a more ferromagnetic material for the core will strengthen the electromagnet.
In this atomic model, point A represents
F a protonG a nucleusH a neutronJ an electron
In this atomic model, point A represents
H a neutron
In this atomic model, point A represents
Neutrons have no charge.
What charge do neutrons have?
In this atomic model, B represents
F a proton
G a nucleus
H a neutronJ an electron
In this atomic model, B represents
A nucleus contains protons and neutrons.
G nucleus
In this atomic model, B represents
Positive
What charge does a nucleus have?
In this atomic model, point C represents
F a protonG a nucleusH a neutronJ an electron
In this atomic model, point C represents
F a proton
Protons have a positive charge.
In this atomic model, point D represents
And, by process of elimination, D is an electron
Using the illustration of the man as a reference scale, the length of the baby blue whale would be
A 2 metersB 4 metersC 6
metersD 9 meters
B 4 meters
B 4 meters
In this food web,
which of the
following consumer
s eats only
producers?A
hawkB fox
C shrew
D mouse
D, the itty-bitty mouse.
Classify each of the illustrations above as an element, a mixture or a compound.
This illustration represents an element because there is only type of particle present and each one is separate.
This illustration represents a mixture because there are two types of particles present but each one is separate (not chemically combined).
This illustration represents a compound because there are two types of particles present and one of each joined with one of the other (chemically combined).
This illustration represents an element because there is only type of particle present and each one is separate.
Which orientation of magnets would result in the greatest attraction between the magnets?
Opposites attract and the north and south poles of this pair of magnets are in the best position for the greatest force of attraction.
The apparatus shown above was set up as shown, and thermometer readings were recorded for 20 minutes. The results were then graphed.
By how many degrees did the temperature of the hot water decrease in the 20 minutes that readings were taken?A 10°C B 14°C C 20°C D
28°C
A 10°C B 14°C C 20°C D 28°C
98°C – 70°C = D 28°C
123
45
6789
100 °C – 80 °C = 20 °C
20 °C ÷ 10 lines = 2 °/line
Suppose that in a certain area, mice are the main food source for wolves. Based on the graph, in which year would there be the least competition among wolves for food?
F 1975G 1980H 1985
J 1990
Suppose that in a certain area, mice are the main food source for wolves. Based on the graph, in which year would there be the least competition among wolves for food?
H 1985
Suppose that in a certain area, mice are the main food source for wolves. Based on the graph, in which year would there be the greatest competition among wolves for food?
F 1980G 1985
H 1990
J 1995
Suppose that in a certain area, mice are the main food source for wolves. Based on the graph, in which year would there be the greatest competition among wolves for food?
J 1995
Which amphibian is most aquatic?
The primary producer in this ecosystem is the -
F plant
H hawk
G rabbit J fox
The primary producer in this ecosystem is the -
F plant
The location on the track where the train has the greatest potential energy is -A 1 B 2 C 3 D
4
The location on the track where the train has the greatest potential energy is -
A 1
The location on the track where the train has the greatest kinetic energy is -A 1 B 2 C 3 D
4
The location on the track where the train has the greatest kinetic energy is -
C 3
The diagram shows a simple food web of organisms on a forest floor. Which of these is most dependent on the earthworm for its food supply?
A slugB centipedeC antD bacteria
B centipede
Some snapdragon seeds were studied in the experiment above. The seeds were placed in a dish lined with a moist paper towel. Which of these is the independent (manipulated) variable in this experiment?
A the type of seedB the amount of water usedC the number of sproutsD the temperature of each dish
D the temperature of each dish
The sea urchin shown has radial symmetry. This means that its body parts are -A equally arranged around a central
pointB designed to function in seawaterC likely to be reformed if any part of the body is damagedD able to function on land and in the water
The sea urchin shown has radial symmetry. This means that its body parts are -
A equally arranged around a central point
According to this graph, which of these is most important in developing the biomass of these plants?
According to this graph, which of these is most important in developing the biomass of these plants?F nitratesG sulfatesH magnesiumJ iron
G sulfates
In this food web, which organism has the greatest number of food sources?
A SnakeB Hawk
C ShrewD Mouse
B
Which of the following list the elements in order, from those have the least protons to those having the most protons in the atoms?
A O, N, Bi, LiB Na, S, B, LiC O, S, Se, TeD Rb, K, Na, Li
Which of the following lists are the elements in order, from those have the least protons to those having the most protons in the atoms?
A O, N, Bi, LiB Na, S, B, Li
C O, S, Se, TeD Rb, K, Na, Li
C O, S, Se, Te
Dry Cell
Wet Cell
Charging by conduction
Charging by conduction requires direct contact (just like transferring thermal energy by conduction.
Charging by conduction
Positive rod attracts electrons from neutral object leaving object positively charged.
Charging by induction
Charging by induction occurs when a charged object causes a separation of charges in a neutral object without touching it.
Charging by induction
Charging by
inductionA positive rod near the neutral object attracts the negative charges to one end leaving the other end positively charged.
An electroscope detects the presence of a charge.
What is the mass of the object on the balance?F 335.6 gG 350.6 gH 354.6 gJ 356.0 g
300 g + 50 g + 4.6 g =
H 354.6 g
Bending a steel nail is an example of a ___ change.
PHYSICAL
Copper corroding is an example of a ___ change.
CHEMICAL
Each specific substance can be identified by its ___.
PROPERTIES
___ are a type of matter that consists of two or more substances that are physically combined.
MIXTURES
A ___ is made of two or more elements that are chemically combined.
COMPOUND
___ are sub-stances that can-not be broken down chemically into other substances.
ELEMENTS
In chemistry, elements are represented by chemical ___.
SYMBOLS
The kilogram is the SI unit for ___.
MASS
The measurement of the amount of mass contained in a given ___ is called density.
VOLUME
A ___ holds atoms together in a molecule.
CHEMICAL BOND
A group of atoms that are bonded together is called a(n) ___.
MOLECULE
Changes in state are examples of ___ changes.
PHYSICAL
The ___ is the SI unit of volume .
LITER
A change in matter that produces a(n) ___ is called a chemical change, or chemical reaction.
NEW SUBSTANCE
Color, size, and shape of a sub-stance are examples of the substance’s ___ properties.
PHYSICAL
A ___ shows the ratio of elements in a compound.
CHEMICAL FORMULA
The smallest particle of a(n) ___ is called an atom.
ELEMENT
A ___ is a state of matter that has a definite volume and a definite shape.
SOLID
Gas is the state of matter that undergoes changes in ___ most easily.
VOLUME
Particles of a ___ are free to move within a container but remain in close contact with one another.
LIQUID
The state of matter in which the particles spread apart and fill all the space available to them is the ___ state.
GAS
The amount of space that any matter occu-pies is its ___.
VOLUME
According to ___ law, when the pressure of a gas increases at constant temperature, its volume decreases.
BOYLE’S
When the temperature of a gas decreases while volume is constant, its ___ decreases.
PRESSURE
According to Charles’ law, when the ___ of a gas increases at con-stant pressure, its volume increases.
TEMPERATURE
___ is the process of a liquid changing into a solid.
FREEZING
When a substance changes from a ___ to a ___ without passing through a liquid state, the change is described as sublimation.
SOLID TO A GAS
Vaporization is a liquid becoming a ___.
GAS
During the time it takes for an entire sample of a substance to change from a solid to a liquid, the temperature of the substance ___.
REMAINS CONTANT
When a gas changes into a liquid, the gas undergoes ___.
CONDENSATION
___ energy always flows from a warmer substance to a cooler substance.
HEAT
Matter in the ___ state would have the least thermal energy.
SOLID
Ice ___ as a result of thermal energy flowing from the surroundings to the ice.
MELTS
The common state of matter that does not have a definite shape or a definite volume is a(n) ___.
GAS
As described by Charles’s law, when-ever the temperature of a gas at constant pressure decreases, the volume ___.
DECREASES
When a substance cools, it loses ___ energy to its surroundings.
THERMAL
A liquid does not have a definite shape, but it does have a definite ___.
VOLUME
Particles in a liquid move around ___ freely than particles in a solid.
MORE
___ occurs when particles on the surface of a liquid gain enough energy to become a gas.
EVAPORATION
Protons are subatomic par-ticles that have a ___ charge.
POSITIVE
Electrons are very energetic particles that move in all directions around the ___ of an atom.
NUCLEUS
Electrons involved in bonding between atoms are ___ electrons.
VALENCE
The greatest number of valence elec-trons an atom can have is ___.
EIGHT
___ created the first periodic table by arranging elements in order of increasing atomic mass.
MENDELEEV
The modern periodic table is arranged in order of ___ atomic number.
INCREASING
An element’s atomic number indicates the number of ___ in an atom.
PROTONS
The elements in a(n) ___ of the periodic table are in the same family.
COLUMN
Across a period of eight elements in the periodic table, the number of ___ increases from 1 to 8.
VALENCE ELECTRON
S
The elements in the same ___ have the same number of valence electrons.
COLUMN
___ are located to the left of the zigzag line in the periodic table.
METALS
Most ___ are solid at room temperature.
METALS
In the periodic table, the most reactive metals are found in Group ___, the first column on the left.
1
___ metals have two valence electrons in their atoms.
ALKALINE EARTH
___ metals are so similar that it’s often difficult to find differences between them.
TRANSITION
___ are located to the right of the zigzag line on the periodic table.
NONMETALS
Metalloids are a group that con-tains the elements used to make ___.
SEMICONDUCTORS
Fluorine, chlor-ine, bromine, and iodine are part of a family called ___.
HALOGENS
___ are elements that share characteristics with both metals and nonmetals.
METALLOIDS
In nuclear ___ new elements are created inside stars when small nuclei combine to form larger nuclei.
FUSION
Elements that transmit electricity and heat easily are called good ___.
CONDUCTORS
In an atom, the particles that have no ___ are called neutrons.
CHARGE
___ are poor conductors of heat and electricity.
INSULATORS
Across a period of eight elements, the number of valence electrons in-creases from ___.
1 TO 8
The extremely reactive Group ___ elements have 1 valence electron(s).
I (a/k/a ALKALI
METALS)
Bronze is a(n) ___ formed by mixing copper and tin.
ALLOY
A substance that will conduct electricity only under certain conditions is called a ___.
SEMICONUCTOR
In stars, matter exists in the ___ state, in which electrons have been stripped away from the atoms and the nuclei are packed close together.
PLASMA
When two nuclei combine in a nuclear fusion reaction, a huge amount of ___ is released.
ENERGY
A chemical ___ is formed when atoms gain, lose or share electrons.
BOND
Chemical bonding occurs because most elements become more stable by gaining, losing or sharing ___.
ELECTRONS
How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?
EIGHT
(H AND He ARE THE EXCEPTIONS)
When an atom gains or loses electrons, the charged particle that results is called a(n) ___.
ION
An ion is an atom or group of atoms that has become electrically ___.
CHARGED
Ionic bonds are formed by the attraction between ___.
IONS
What kind of chemical bond is formed when electrons are transferred from atom to atom?
IONIC
The force of attraction between the opposite charges of ions in an ionic compound is a(n) ___.
IONIC BOND
When an atom loses an electron, it becomes a ___ ion.
POSITIVE
When an electron is transferred from a sodium atom to a chlorine atom, the chlorine atom becomes a ___ ion.
NEGATIVE
An ionic bond is the attraction between ___ charged ions.
OPPOSITELY
An ionic bond is formed when ___ are transferred.
ELECTRONS
Ionic compounds are electrically ___.
NEUTRAL
Ions that are made of more than one atom are examples of ___ ions.
POLYATOMIC
A group of atoms that acts together as one charged atom is a ___.
POLYATOMIC ION
Why do the noble gases not form compounds readily?
THEY HAVE COMPLETELY FILLED OUTER
ENERGY LEVELS
Density = mass volume
mass = 270 g
Calculate the density of this object.
D = m v
mass = 270 g
270 g27 cm3
= 10 g cm3
=
= 10 g/cm3or
Density = mass volume
mass = 32 g
Calculate the density of this object.
D = m v
mass = 32 g
32 g160 cm3
= 0.2 g cm3
=
=0.2 g/cm3
or
A chemical bond that occurs when atoms share electrons is a(n) ___.
COVALENT
Particles formed from the covalent bonding of atoms are called ___.
MOLECULES
Because water molecules are slightly positive at one end and slightly negative at the other end, it is a ___ molecule.
POLAR
There is no such science as alchemy.
The properties of compounds are generally ___ from those elements they contain.
DIFFERENT
Covalent bonds are formed by the ___ of electrons.
SHARING
Nonmetals usually combine by forming ___ bonds.
COVALENT
Covalent bonding produces units called ___.
MOLECULES
The unequal sharing of electrons produces com-pounds that contain ___ bonds.
POLAR
The equal sharing of electrons produces compounds that contain ___ bonds.
NONPOLAR
A force that holds the atoms in a compound together is a ___ bond.
CHEMICAL
An atom is chemically ___ when its outer en-ergy level is filled with electrons.
STABLE
A molecule that has a positive end and a negative end is a ___ molecule.
POLAR
Molecules that do not have oppositely charged ends are ___ molecules.
NONPOLAR
Bonds that form between two nonmetals are usually ___.
COVALENT
When two atoms share two pairs of electrons, a(n) ___ bond is formed.
DOUBLE
___ pairs of electrons are shared in a triple bond.
THREE
A molecular compound consists of molecules that have ___ bonded atoms.
COVALENTLY
Most molecular compounds have ___ melting points.
LOW
Metal elements tend to ___ electrons when forming ionic compounds.
LOSE
At room temp-erature all ___ compounds are solids.
IONIC
A(n) ___ number indicates how many electrons an atom gains or loses when forming a compound.
OXIDATION
The transfer of one or more electrons results in a(n) ___ bond.
IONIC
Because nonmetal elements generally gain electrons when forming compounds they become electrically ___.
NEGATIVE
Because it has only one valence electron, hydrogen can form only a ___ chemical bond.
SINGLE
At room temperature most covalent compounds are ___ or ___.
LIQUIDS OR GASES
Every chemical reaction involves a change in ___.
ENERGY
A(n) ___ reaction is a reaction that absorbs energy in the form of heat.
ENDOTHERMIC (FEELS COOL OR COLD)
In a chemical reaction ___ is either absorbed or released.
ENERGY
A(n) ___ is a process that changes matter into one or more new substances.
CHEMICAL CHANGE
Water vapor in the air turns to liquid water in the form of rain. This is an example of a ___.
CONDENSATION
A solid that forms from solution during a chemical reaction is called a ___.
PRECIPITATE
The only sure evidence of a chemical reaction is production of new ___.
SUBSTANCE(S)
A chemical ___ is a shorter, easier way to show chemical reactions, using symbols instead of words.
EQUATION
___ of elements are used to write the formulas of compounds much like letters are used to write words.
SYMBOLS
The substances listed on the left side of a chemical equation are the ___.
REACTANTS
Sulfur dioxide, oxygen, and water combine to produce sulfuric acid (2 SO2 + O2 + 2 H2O → 2
H2SO4). This chemical
reaction is a ___ reaction.
SYNTHESIS
In chemical reac-tions, the principle of conservation of ___ means that matter is not created or destroyed.
MASS
In an equation, the numbers that appear in front of a chemical for-mula tell you the number of ___ or atoms of each sub-stance in the reaction.
MOLECULES
When two or more substances combine to make a more complex compound, the process is called a ___ reaction.
SYNTHESIS
X Parallel
Circuit
Series Circuit
X X X
A bottle of hydrogen peroxide that even-tually breaks down into a bottle of water and oxygen gas is an example of a ___ reaction.
DECOMPOSITION
The chemical reaction between copper oxide and carbon that produces copper and carbon dioxide (CuO + C → Cu + CO2) is an
example of ___ reaction.
SINGLE REPLACEMENT
SINGLE REPLACEME
NT
The minimum amount of energy that has to be added to start a reaction is the ___ energy.
ACTIVATION
Chemicals that act as biological cata-lysts by speeding up reactions in living things are ___.
ENZYMES
A material used to decrease the rate of a chem-ical reaction is an ___.
INHIBITOR
Water affects most fires by cooling the fire and preventing contact between ___ and fuel.
OXYGEN
___ is the best form of fire safety.
PREVENTION
MgCO3 + 2 HCl →
MgCl2 + H2CO3)
may be classified as a(n) ___ reaction.
DOUBLE REPLACEMEN
T
A molecule of table sugar, C12H22O11, has
___ hydrogen atoms.
22
The formation of a gas or a precipitate may be evidence for a ___.
CHEMICAL REACTION
Atoms are held together by forces known as ___.
CHEMICAL BONDS
A precipitate is a(n) ___ that forms from solution during a chemical reaction.
SOLID
A subscript shows the number of ___ of an element in a molecule.
ATOMS
A gas neces-sary for com-bustion to take place is ___.
OXYGEN
A reaction that ___ energy in the form of heat is an exothermic reaction.
RELEASES
The ___ is the amount of one material present in a given amount of another material.
CONCENTRATION
A fuel is a material that will release ___ when it burns.
ENERGY
Rust forms when iron metal combines with oxygen in the air to produce iron oxide (Fe + O2 → Fe2O3). This
reaction is an example of a ___ reaction.
SYNTHESIS
A material used to increase the rate of a chem-ical reaction is called a(n) ___.
CATALYST
Hydrogen gas and oxygen gas can explode in a violent, exothermic reaction if ignited by a spark. In this case, the spark supplies the ___ for the reaction.
ACTIVATION ENERGY
The balanced chemical equation P4O10 + 6 H2O → 4 H3P
O4 tells you that ___
molecules of H3PO4
are formed in the reaction.
4
In a ___ reaction, the products are simpler substances than the reactant.
DECOMPOSITION
The human body contains thou-sands of dif-ferent enzymes, biological ___.
CATALYSTS
A wet log will not burn easily because a large amount of ___ must be added to the log to evaporate the water.
ENERGY
In a chemical reaction, the total mass of the reac-tants is ___ the total mass of the products.
EQUAL TO
So much for
dessert…
Zzzzzzzz
The materials present at the end of a chem-ical reaction are called the ___.
PRODUCTS
In a solution, the substance that is doing the dissolving is the ___.
SOLVENT
A solution that contains all the solute it can hold at a given temp-erature is ___.
SATURATED
Increasing the surface area of a solid ___ the rate of solution.
INCREASES
When a gas is dissolved in a liquid, the gas dissolves faster if the temperature of the liquid is ___.
COLD OR LOW
The concentration of a solution that contains much (a lot of) solute in the solvent could be described as ____.
CONCENTRATED
Adding more solute to a solvent ___ its freezing point.
LOWERS
The amount of solute that can be dissolved in a specific amount of solvent at a given temperature is its ___.
SOLUBILITY
Different substances have ___ solubilities.
DIFFERENT
A crystal of a sol-ute was dropped into a solution and it dissolved. The original solution was ___.
UNSATURATED
What kind of bug
was that??
Decreasing temperature ___ the rate of solution for a gas in a liquid.
INCREASES
The dissolving of a solid in a liquid takes place at solid’s ___.
SURFACE
The type of solution depends on the state of the ___.
SOLVENT
If a crystal of solute is dropped into a solution and other crystals appear, the solution was ___.
SUPERSATURATED
A solid dissolves faster when it is ground because grinding ___ surface area.
INCREASES
A gas dissolves in a liquid most rapidly when under ___ pressure.
HIGH
A supersaturated solution is ___ stable than a saturated solution.
LESS
Organic substances that change color in the presence of an acid or base are called
INDICATORS
A substance that produces H+ ions in solu-tion is a(n) ___.
ACID
A solution with a bitter taste and a slippery feel is most likely a(n) ___.
BASE
Bet I can hold my breath
longer than you!!
A compound formed in solution from the negative ion of an acid and the positive ion of a base is a a(n) ___.
SALT
The terms dilute and concentrated refer to the ___ of a solution.
CONCENTRATION
A substance that produces OH- ions in solution is a(n) ___.
BASE
A reaction between an acid and a base that produces a salt and water is a ___ reaction.
NEUTRALIZATION
A substance with a pH of 2 would be classified as a ___.
STRONG ACID
Coffee has a pH of about 5; Coffee is slightly ___.
ACIDIC
Strong acids have ___ pH values than do weaker acids.
LOWER
On the pH scale, a solution with a pH 7 is ___.
NEUTRAL
Strong acids produce large numbers of ___ ions.
H+
Increasing the temperature increases the __ of a solid solute in a solvent.
DISSOLVING
Nobody tells me where I
can play!!
Adding a solute to a solvent ___ the freezing point of the solvent.
LOWERS
Adding a solute to a solvent ___ the boiling point of the solvent.
INCREASES
The products of neutral-ization are a(n) ___ plus water.
SALT
Because grease is ___ it cannot be dissolved in water.
NONPOLAR
Stirring de-creases the rate of a ___ going into solution in a liquid solvent.
GAS
A solution is a ___ that appears uniform throughout and whose particles cannot easily be separated.
MIXTURE
Geologists use ___ acid (HCl) to test for the presence of carbonates in limestone.
HYDROCHLORIC
You are most likely to find a(n) ___ in household cleaners.
BASE
___ naturally present in food are safe to eat because they are usually weak.
ACIDS
The amount of solute that can be dissolved in a specific amount of solvent at a given ___ is its solubility.
TEMPERATURE
Listen here,
bub, I’m tellin’
you for the last
time, get off of my branch!!
Grinding a solid solute into smaller particles increases ___ area and speeds the rate at which the solute goes into solution.
SURFACE
Sodium hydroxide (NaOH), a very strong ___, is the active ingredient in some drain cleaners.
BASE
When 37 grams of potassium chloride (KCl) forms a solution by being added to 100 grams of water, the potassium chloride (KCl) is the ___.
SOLUTE
___ involves the relative amounts of solvent and solute in a solution.
CONCENTRATION
Common ___ include hydrochloric acid, sulfuric acid, nitric acid, and phosphoric acid.
ACIDS
DUUUUUUUUUUUUUUUUUHHHHHHHHHHHHHHHHHH!!!
Where are the alkali metals?
Where are the noble gases?
Where are the transition elements?
Where is the lanthanide series?
Where are the halogen elements?
Where are the alkaline earth
metals?
Draw the dividing line between metals and
nonmetals.
Circle the symbols of the metalloids.
Element, Compound or Mixture?
IRON
ELEMENT
Element, Compound or Mixture?
DIRT
MIXTURE
Element, Compound or Mixture?
SODIUM CHLORIDE
COMPOUND
Element, Compound or Mixture?
SILVER
ELEMENT
Element, Compound or Mixture?
WATER
COMPOUND
Element, Compound or Mixture?
URANIUM
ELEMENT
Element, Compound or Mixture?
GOLD
ELEMENT
Element, Compound or Mixture?
NEON
ELEMENT
Element, Compound or Mixture?
BRONZE
MIXTURE (ALLOY)
Element, Compound or Mixture?
BAKING SODA
COMPOUND
Element, Compound or Mixture?
BIRD’S NEST
MIXTURE
Element, Compound or Mixture?
OCEAN WATER
MIXTURE (SOLUTION)
Element, Compound or Mixture?
ALUMINUM
ELEMENT
Element, Compound or Mixture?
PAINT
MIXTURE
Element, Compound or Mixture?
SUGAR
COMPOUND
Element, Compound or Mixture?
AIR
MIXTURE (SOLUTION)
Element, Compound or Mixture?
CALCIUM CARBONATE
COMPOUND
Element, Compound or Mixture?
MUDDY WATER
MIXTURE
Element, Compound or Mixture?
POWDERED DRINK MIX
MIXTURE
Element, Compound or Mixture?
CONCRETE
MIXTURE
Element, Compound or Mixture?
CARBON DIOXIDE
COMPOUND
Element, Compound or Mixture?
ICED TEA
MIXTURE
Mom saidthere would be days like this…
…why didn’t I listen??
Element, Compound or Mixture?
CHLORINE
ELEMENT
Element, Compound or Mixture?
CARBONATED WATER
MIXTURE
Element, Compound or Mixture?
IRON
ELEMENT
Element, Compound or Mixture?
IRON
ELEMENT
Element, Compound or Mixture?
IRON
ELEMENT
Which of the three states modeled would not have a definite volume or a definite shape?
A B C
C
In which state modeled are the particles least able to move?
A B C
A
Which figure models a substance with a definite volume but not a definite shape?
A B C
B
If each substance modeled in the diagram were removed from its container, which state would be most affected?
A B C
C
The particles in which two illustrations share the characteristic about shape?
A B C
B C
Classify the type of chemical reaction represented in each of the following illustrations.
Gotcha
The reaction represented here is a ___ reaction.
single replacement
The reaction represented here is a ___ reaction.
synthesis
The reaction represented here is a ___ reaction.
decomposition
The reaction represented here is a ___ reaction.
double replacement
Which illustration shows the object with a density closest to the density of the liquid?
B has the density closest to the liquid.
Which illustration shows the greatest effect of gravity?
Which illustration shows the greatest effect of gravity?
In which illustra-tion is the buoyant force the greatest?
In which illustration is the buoyant force the greatest?
The object in which illustration has the greatest density?
The object in which illustra-tion has the greatest density?
The object in which illustration has the lowest density?
The object in which illustration has the lowest density?
The location where temper-ature and heat energy are increasing is ___.
At line segment B, arrow 9 is indicating that ___.
the sample of matter is melting.
This one’s mine, you
got the last one…ya big
pig!
If the sample of matter was losing energy it would be freezing at ___.
It would be freezing at ___.
What is the sample of matter in this phase change diagram?
There is not enough information to identify the sample of matter in this phase change diagram.
If thermal energy is being lost at line segment D, the change of state occurring is ___.
If thermal energy is being lost at line segment D, the change of state occurring is ____________.
If thermal energy is being lost at line segment D, the change of state occurring is condensation.
Changes in state or phase changes are occurring at line segments ___.
How many grams of NaNO3 are needed to make a saturated solution in 100 grams of water at 10°C? 80 grams
At what temperature will 80 grams of KNO3 produce at saturated solution?
50°C
At about what temp-erature is the solubility of NH4Cl, KNO3 and NH3 the same?26°C
If 100 grams of NaNO3 were placed in 90 grams of water at 30° C, the solution would be __.UNSATURATED
___ is the compound that is most likely a gas.NH3 – THE LINE CURVES DOWNWARD
MASS
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
MASS
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
TOXIC
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
TOXIC
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
CHEMICAL PROPERTY
WEIGHT
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
WEIGHT
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
CORROSIVE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
CORROSIVE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
CHEMICAL PROPERTY
BAKING A CAKE
PHYSICAL CHANGE OR CHEMICAL CHANGE?
BAKING A CAKE
CHEMICAL CHANGE
PHYSICAL CHANGE OR CHEMICAL CHANGE?
VOLUME
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
VOLUME
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
MIRROR BREAKING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
MIRROR BREAKING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
PHYSICAL CHANGE
Giving a whole new meaning to the phrase,
“Hangin’ tough.”
DENSITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
DENSITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
EGGS ROTTING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
EGGS ROTTING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
CHEMICAL CHANGE
STATE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
STATE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
SLICING BREAD
PHYSICAL CHANGE OR CHEMICAL CHANGE?
SLICING BREAD
PHYSICAL CHANGE OR CHEMICAL CHANGE?
PHYSICAL CHANGE
REACTIVITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
REACTIVITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
CHEMICAL PROPERTY
SIZE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
SIZE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
LIQUID BOILING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
LIQUID BOILING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
PHYSICAL CHANGE
SHAPE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
SHAPE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
FIREWORKS EXPLODING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
FIREWORKS EXPLODING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
CHEMICAL CHANGE
COLOR
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
COLOR
PHYSICAL PROPERTY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
ODOR/SMELL
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
ODOR/SMELL
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
ALCOHOL EVAPORATING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
ALCOHOL EVAPORATING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
PHYSICAL CHANGE
TASTE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
TASTE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
New World Champion Milk
Drinker
MAGNETIC
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
MAGNETIC
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
SKY CHANGING COLOR
PHYSICAL CHANGE OR CHEMICAL CHANGE?
SKY CHANGING COLOR
PHYSICAL CHANGE OR CHEMICAL CHANGE?
PHYSICAL CHANGE
FLEXIBILITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
FLEXIBILITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
FLAMMABILITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
FLAMMABILITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
CHEMICAL PROPERTY
ELASTICITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
ELASTICITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
TEXTURE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
TEXTURE
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
GAS CONDENSING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
GAS CONDENSING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
PHYSICAL CHANGE
HARDNESS
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
HARDNESS
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
BOILING POINT
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
BOILING POINT
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
MELTING POINT
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
MELTING POINT
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
DEAD ANIMAL DECAYING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
DEAD ANIMAL DECAYING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
CHEMICAL CHANGE
CONDUCTIVITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
CONDUCTIVITY
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
PHYSICAL PROPERTY
SUPPORT COMBUSTION
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
SUPPORT COMBUSTION
PHYSICAL PROPERTY OR CHEMICAL PROPERTY?
CHEMICAL PROPERTY
PAPER BURNING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
PAPER BURNING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
CHEMICAL CHANGE
DRY ICE SUBLIMATING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
DRY ICE SUBLIMATING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
PHYSICAL CHANGE
SILVER TARNISHING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
SILVER TARNISHING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
CHEMICAL CHANGE
BATTERY CORRODING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
BATTERY CORRODING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
CHEMICAL CHANGE
GOLD MELTING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
GOLD MELTING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
PHYSICAL CHANGE
FOOD DIGESTING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
FOOD DIGESTING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
CHEMICAL CHANGE
ALUMINUM OXIDIZING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
ALUMINUM OXIDIZING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
CHEMICAL CHANGE
SUGAR DISSOLVING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
SUGAR DISSOLVING
PHYSICAL CHANGE OR CHEMICAL CHANGE?
PHYSICAL CHANGE