Module 4 (Test Week 6)

Question 1

Mixture

Answer 1

A substance that contains different compounds and/or elements.

Question 2

Homogeneous

Answer 2

A mixture with a composition that is different depending upon what part of the sample you are looking at.

Question 3

“Homo”

Answer 3

Same

Question 4

“Hetero”

Answer 4

Different

Question 5

Physical Change

Answer 5

A change in which the atoms or molecules in a substance stays the same.

Question 6

Chemical Change

Answer 6

A change that affects the type of molecules or atoms in a substance.

Question 7

Phase change

Answer 7

When a substance changes from a liquid to a solid (or vice versa; same applies from liquid to gas

Question 8

Melting

Answer 8

Turning solid to a liquid

Question 9

Freezing

Answer 9

Turning a liquid to a solid

Question 10

Boiling

Answer 10

Turning liquid to gas

Question 11

Condensing

Answer 11

Turning has to liquid

Question 12

Phases of matter

Answer 12

Solid liquid and gas

Question 13

Kinetic Theory of Matter

Answer 13

Molecules and atoms are in constant motion, and the higher the temperature, the greater the speed.

Question 14

Melting point

Answer 14

The temperature at which a solid changes to a liquid

Question 15

Boiling point

Answer 15

The temperature at which a liquid changes to a gas.

Question 16

Pure Substance

Answer 16

A substance that only contains one element of compound.