Unit DUnit DElements and their Elements and their

CombinationsCombinations

What is matter?What is matter?

a.a. Something that has mass and takes up Something that has mass and takes up spacespace

b.b. Something that is importantSomething that is important

c.c. Something that is a problemSomething that is a problem

d.d. Something that takes up no space and is Something that takes up no space and is invisibleinvisible

What is matter made up of?What is matter made up of?

a.a. OrgansOrgans

b.b. Cells Cells

c.c. Atoms Atoms

d.d. Links Links

Which element is a metal?Which element is a metal?

a.a. Oxygen Oxygen

b.b. Gold Gold

c.c. CarbonCarbon

d.d. Helium Helium

Which is NOT a property of a Which is NOT a property of a metal?metal?

a.a. ShinyShiny

b.b. Can bendCan bend

c.c. Melts easily Melts easily

d.d. Gets hotGets hot

What is the smallest number of What is the smallest number of parts in a compound?parts in a compound?

a.a. 11

b.b. 22

c.c. 33

d.d. 44

You can see an atom withYou can see an atom with

a.a. Your eyeYour eye

b.b. A special telescopeA special telescope

c.c. A magnifying glassA magnifying glass

d.d. A special microscopeA special microscope

Atoms may combine to form a(n)Atoms may combine to form a(n)

a.a. MixtureMixture

b.b. MoleculeMolecule

c.c. NucleusNucleus

d.d. Element Element

What does What does periodic periodic meanmean

a.a. Happening sometimesHappening sometimes

b.b. Happening all the timeHappening all the time

c.c. Happening at regular timesHappening at regular times

d.d. Happening at the endHappening at the end

What element is a building block of What element is a building block of matter in living things?matter in living things?

a.a. CarbonCarbon

b.b. Hydrogen Hydrogen

c.c. HeliumHelium

d.d. Oxygen Oxygen

Which one of the following is NOT Which one of the following is NOT one of your senses?one of your senses?

a.a. HearingHearing

b.b. SightSight

c.c. TouchTouch

d.d. Thinking Thinking

Which group lists the physical Which group lists the physical properties of materials?properties of materials?

a.a. Shape, color, ability to floatShape, color, ability to float

b.b. Smell, density, ability to rustSmell, density, ability to rust

c.c. Color, texture, ability to burnColor, texture, ability to burn

d.d. Taste, texture ability to rustTaste, texture ability to rust

Which is an example of a chemical Which is an example of a chemical change?change?

a.a. Cutting paperCutting paper

b.b. Making iceMaking ice

c.c. Burning woodBurning wood

d.d. Boiling waterBoiling water

A compound is made up ofA compound is made up of

a.a. An elementAn element

b.b. Different kinds of atomsDifferent kinds of atoms

c.c. The same kind of atomThe same kind of atom

d.d. Salt and waterSalt and water

Water is aWater is a

a.a. Compound Compound

b.b. An elementAn element

c.c. A mixtureA mixture

d.d. A solution A solution

What will happen in this beaker?What will happen in this beaker?

a.a. NothingNothing

b.b. The water will boilThe water will boil

c.c. The water will The water will disappeardisappear

d.d. The sugar will The sugar will dissolvedissolve

The temperature at which a solid The temperature at which a solid changes to a liquid is called thechanges to a liquid is called the

a.a. Boiling pointBoiling point

b.b. Celsius scaleCelsius scale

c.c. Fahrenheit scaleFahrenheit scale

d.d. Melting pointMelting point

Some foods taste because they contain a Some foods taste because they contain a type of chemical called an acid. Which food type of chemical called an acid. Which food

contains acid?contains acid?

a.a. Ice creamIce cream

b.b. LemonsLemons

c.c. PeasPeas

d.d. Chicken Chicken

What is What is NOTNOT a property of salt? a property of salt?

a.a. It is whiteIt is white

b.b. It is made of tiny crystalsIt is made of tiny crystals

c.c. It tastes sourIt tastes sour

d.d. It mixes in waterIt mixes in water

The amount of space an object The amount of space an object takes up is called itstakes up is called its

a.a. TemperatureTemperature

b.b. MassMass

c.c. VolumeVolume

d.d. Shape Shape

Which kind of substance has no Which kind of substance has no definite shape and probably a large definite shape and probably a large

amount of space between its particles?amount of space between its particles?a.a. SolidSolid

b.b. Liquid Liquid

c.c. GasGas

d.d. Water Water

Which substance has no definite Which substance has no definite shape but has a definite volume?shape but has a definite volume?

a.a. Iron fillingsIron fillings

b.b. Liquid waterLiquid water

c.c. Nitrogen gasNitrogen gas

d.d. Salt crystals Salt crystals

The process of liquid water The process of liquid water changing to a gas is calledchanging to a gas is called

a.a. Freezing Freezing

b.b. PrecipitationPrecipitation

c.c. MeltingMelting

d.d. Vaporization Vaporization

Which is a property of glass?Which is a property of glass?

a.a. It is clearIt is clear

b.b. It can bendIt can bend

c.c. It is softIt is soft

d.d. It is a liquid at room temperatureIt is a liquid at room temperature

Chocolate milk is Chocolate milk is

a.a. A chemicalA chemical

b.b. A compoundA compound

c.c. A mixtureA mixture

d.d. A reactionA reaction

Hydrogen combines with oxygen to make Hydrogen combines with oxygen to make water. A scientist calls the hydrogen and water. A scientist calls the hydrogen and

oxygenoxygen

a.a. IngredientsIngredients

b.b. ReactantsReactants

c.c. ProductsProducts

d.d. Energy Energy

A difference between a physical A difference between a physical change and a chemical change is that change and a chemical change is that

in a chemical changein a chemical change a.a. A new substance formsA new substance forms

b.b. No new substance formsNo new substance forms

c.c. Only the shape of the substance Only the shape of the substance changeschanges

d.d. Only the size of the substance Only the size of the substance changeschanges

What do solids, liquids, and gases What do solids, liquids, and gases have in common?have in common?

a.a. They can be squeezed to take up They can be squeezed to take up less spaceless space

b.b. People can see themPeople can see them

c.c. They have shapeThey have shape

d.d. They are made up of particlesThey are made up of particles