Q: The smallest unit of matter

A: Atom

Q: Model of an atom

A: Bohr Diagram

Q: Atomic Number

A: # of Protons in the nucleus

Q: Electrical charge of the 3 atomic particles

A: Protons + Electrons - Neutrons 0

Q: Mass or Weight of the 3 atomic particles

A: Proton = 1amu Neutron = 1 amu Electron = 0 amu

Q: Atomic Mass (Weight)

A: # Protons + # Neutrons

Q: A change in which new matter is formed (burning wood,

cooking food, rusting iron).

A: Chemical Change

Q: Combinations of different elements that result from chemical

changes.

A: Compounds

Q: Characteristic properties of matter (always the same)

A: Boiling point, melting point, density, conductivity

Q: Non-characteristic properties of matter (can vary with items)

A: Shape, mass, length,

Q: The ability to transmit energy (electrical, heat, light)

A: Conductivity

Q: The amount of matter in a given space.

A: Density

Q: Combining a solid with a liquid to form a homogeneous

solution.

A: To Dissolve

Q: Matter made up of one kind of atom.

A: Element

Q: When liquid changes to gas.

A: To Evaporate

Q: What is the Law of the Conservation of Matter?

A: During an ordinary chemical reaction, matter can’t be

created or destroyed.

Q: Anything that takes up space and has mass.

A: Matter

Q: The amount of matter in a body.

A: Mass

Q: Two or more materials combined

but not chemically joined. Can be separated by physical

means (filtering, boiling).

A: Mixture

Q: Mixture with parts evenly distributed throughout

A: Homogeneous mixture

Q: Mixture with parts kept separate

A: Heterogeneous mixture

Q: The smallest particle of a substance that retains the

chemical and physical properties of the substance and

is composed of two or more.

A: Molecule

Water/H2O

Q: Chart of the more than 100 different elements found on

earth.

A: Periodic Table of the Elements

Q: The ability of a substance to dissolve in a liquid (ex: sugar).

A: Solubility

Q: Mixture in which particles of the substances are evenly

mixed and cannot be separated by means such as filtering.

A: Solution

Q: Mass X Gravitational force (measured with a spring scale)

A: Weight(measured in Newtons)

Q: How much matter is in an object;

measured with a triple beam balance.

Units: grams

A: Mass

Q: How much space an object takes up; measured with a

graduated cylinder or length x width x height.

Units:Milliliter or cm3

A: Volume

Q: How much matter is packed into a particular space. Units: grams/milliliter or

grams/cm3

A: Density

Q: How do you calculate density?

A: Density = Mass/Volume

Find volume by multiplying Length X Height X

Width

Or:

Q: Non-reversible change when bonds are broken and

something new is produced.

A: Chemical change

Q: Reversible change where substances keep their chemical

composition and no new substances are produced.

(mixing, freezing, boiling, evaporation,

tearing, crushing)

A: Physical Change