Unit B chapter 3 review

Question 1

Physical Change

Answer 1

change in size, shape, or state of matter=no new matter

Question 2

Solution

Answer 2

particles of different substances mixed evenly

Question 3

Chemical change

Answer 3

change in matter, one or more different kinds of matter forms

Question 4

Chemical properties

Answer 4

characteristic can only be seen when the substance changes, new substance is formed

Question 5

Chemical reaction

Answer 5

process one or more substances are changed into different substances

Question 6

Mixture

Answer 6

matter that is made up of 2 or more substances that can be separated by physical means (ways)

Question 7

Is temperature change a physical change?

Answer 7

Yes

Question 8

Change in temperature causes a change in…

Answer 8

Size and volume

Question 9

Heating matter causes it to…

Answer 9

get bigger

Question 10

Cooling matter causes it to…

Answer 10

get smaller

Question 11

What is the only thing that gets bigger when cooled and smaller when heated?

Answer 11

Water

Question 12

Examples of a mixture are…

Answer 12

salad or chex mix

Question 13

Does a mixture change matter’s physical properties?

Answer 13

No

Question 14

Examples of solutions are…

Answer 14

sea water, salt water, and sugar water

Question 15

Can physical change be undone?

Answer 15

Yes

Question 16

Can chemical change be undone?

Answer 16

No

Question 17

Chemical change happens quickly or slowly?

Answer 17

Both

Question 18

Can you destroy matter?

Answer 18

No

Question 19

The amount of matter on Earth changes?

Answer 19

No