Unit 2 Matter Test Review

Question 1

Matter

Answer 1

Anything that takes up space.

Question 2

Physical Properties

Answer 2

Characteristics of matter that you can observe or measure directly.

Question 3

Reflectivity

Answer 3

The ability to reflect light (Physical Property)

Question 4

Hardness

Answer 4

Describe how easily something can be bent or dented (Physical Property)

Question 5

Flexible

Answer 5

Describes how objects can be bent without breaking (Physical Property)

Question 6

Magnetic

Answer 6

Describes objects that are attracted to magnets, usually made of metal (Physical Property)

Question 7

Conductivity

Answer 7

The ability to transfer heat or electricity (Physical Property)

Question 8

Conductors

Answer 8

Materials that let heat or electricity travel easily through them.

Question 9

Insulators

Answer 9

Materials that do not easily let the heat or electricity travel through them.

Question 10

Solubility

Answer 10

The ability of one substance to dissolve into another (Physical Property)

Question 11

Mixture

Answer 11

A combination of two or more substances in which the substances keep their identities.

Question 12

Solution

Answer 12

A special kind of mixture that has the same composition throughout because its particles are mixed evenly.

Question 13

Taco- Solution or Mixture?

Answer 13

Mixture :)

Question 14

Lemonade- Solution or Mixture?

Answer 14

Solution :)

Question 15

AIR- Solution or Mixture?

Answer 15

Solution :)

Question 16

Physical Change

Answer 16

The size, color, shape may change, but the matter itself is the same.

Question 17

Is changing the state of matter a Physical Change or Chemical Change?

Answer 17

Physical Change :)

Question 18

What phase change? Solid+Heat=Liquid

Answer 18

Melting :)

Question 19

What phase change? Liquid+Heat=Gas

Answer 19

Evaporation :)

Question 20

What phase change? Liquid-Heat=Solid

Answer 20

Freezing :)

Question 21

What phase change? Gas-Heat=Liquid

Answer 21

Condensation :)

Question 22

Chemical Change

Answer 22

A change in which new matter is formed.

Question 23

Burning Wood-Physical Change or Chemical Change?

Answer 23

Chemical Change :)

Question 24

Cooking eggs-Physical Change or Chemical Change?

Answer 24

Chemical Change :)

Question 25

The smell produced by rotting trash-Physical Change or Chemical Change?

Answer 25

Chemical Change

Question 26

crumpling paper- Physical Change or Chemical Change?

Answer 26

Physical Change

Question 27

Boiling water/evaporating-Physical Change or Chemical Change?

Answer 27

Physical Change

Question 28

Changing states of Matter Molecules are:

Answer 28

Packed tightly for solid
Slightly separated for liquid
Spread out gas

Question 29

Three states of Matter

Answer 29

Solid, Liquid, Gas

Question 30

Solid

Answer 30

Has a definite shape and volume
Particles are tightly packed

Question 31

Liquid

Answer 31

Has no definite shape but definite volume
Particles not as tightly packed and can flow past each other

Question 32

Gas

Answer 32

Has neither definite shape nor volume
Particles have space between them to move freely

Question 33

Boiling Point

Answer 33

212 degrees Fahrenhiet

Question 34

Freezing Point

Answer 34

32 degrees Fahrenheit