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Worksheets

Chemical or Physical Change

Total questions: 45

Worksheet time: 23mins

Name
Class
Date
1.

Chemical or Physical Change?


Heat is produced

a)

Chemical Change

b)

Physical Change

2.

Chemical or Physical Change?


A change in state of matter

a)

Chemical change

b)

Physical Change

3.

Chemical or Physical Change?


Combustion of fuel

a)

Chemical change

b)

Physical change

4.

Chemical or Physical Change?


Change in odor

a)

Chemical change

b)

Physical change

5.

Chemical or Physical Change?


Slicing bread

a)

Chemical change

b)

Physical change

6.

Chemical or Physical Change?


Rusting iron nail

a)

Chemical change

b)

Physical change

7.

Chemical or Physical Change?


Souring of milk

a)

Chemical change

b)

Physical change

8.

Chemical or Physical Change?


Mixing vegetable oil and water

a)

Chemical change

b)

Physical change

9.

Chemical or Physical Change?


Dissolving salt in water

a)

Chemical change

b)

Physical change

10.

Chemical or Physical Change?


Easily changes back to its original composition

a)

Chemical change

b)

Physical change

11.

Chemical or Physical Change?


forms a precipitate

a)

Chemical change

b)

Physical change

12.

Chemical or Physical Change?


Exploding fireworks

a)

Chemical change

b)

Physical change

13.

Chemical or Physical Change?


Candle wax melting

a)

Chemical change

b)

Physical change

14.

Chemical or Physical Change?


Has to go through reactions to return to its original form

a)

Chemical change

b)

Physical change

15.

Chemical or Physical Change?


A new substance with different properties is formed

a)

Chemical change

b)

Physical change

16.

Chemical or Physical Change?


Crushing an aluminum can

a)

Chemical change

b)

Physical change

17.

Chemical or Physical Change?


Digestion of food

a)

Chemical change

b)

Physical change

18.

Chemical or Physical Change?


Adding in food color to a liquid

a)

Chemical change

b)

Physical change

19.

Chemical or Physical Change?


Molecules change their structure to form a new molecule

a)

Chemical change

b)

Physical change

20.

Chemical or Physical Change?


Gas is produced

a)

Chemical change

b)

Physical change

21.

Chemical or Physical Change?


Burning coal

a)

Chemical change

b)

Physical change

22.

Chemical or Physical Change?


Molecules do not rearrange to form a new molecule.

a)

Chemical change

b)

Physical change

23.

Chemical or Physical Change?


No new substance is formed. No new properties

a)

Chemical change

b)

Physical change

24.

Chemical or Physical Change?


Water condenses on the outside of a cold water bottle

a)

Chemical change

b)

Physical change

25.

Chemical or Physical Change?


Dry ice sublimates into a gas

a)

Chemical change

b)

Physical change

26.

Chemical or Physical Change?


Kool Aid is frozen to make popsicles

a)

Chemical change

b)

Physical change

27.

Chemical or Physical Change?


Decaying plants

a)

Chemical change

b)

Physical change

28.

Chemical or Physical Change?


Chopping up vegetables

a)

Chemical change

b)

Physical change

29.

Chemical or Physical Change?


Baking cookies

a)

Chemical change

b)

Physical change

30.

Chemical or Physical Change?


Carving wood

a)

Chemical change

b)

Physical change

31.

Chemical or Physical Change?


Frying eggs

a)

Chemical change

b)

Physical change

32.

Chemical or Physical Change?


Shattering a glass beaker

a)

Chemical change

b)

Physical change

33.

Chemical or Physical Change?


A puddle of water evaporates

a)

Chemical change

b)

Physical change

34.

Chemical or Physical Change?


Blowing up balloons

a)

Chemical change

b)

Physical change

35.

Chemical or Physical Change?


A glow stick is cracked open to produce light

a)

Chemical change

b)

Physical change

36.

Chemical or Physical Change?


Two liquids are combined. Bubbles form and the temperature of the liquids decreases.

a)

Chemical change

b)

Physical change

37.

Chemical or Physical Change?


A penny tarnishes to a green color

a)

Chemical change

b)

Physical change

38.

Chemical or Physical Change?


A pot of water is put on the stove. It heats up and begins to boil.

a)

Chemical change

b)

Physical change

39.

Chemical or Physical Change?


Wood is burned in a fireplace

a)

Chemical change

b)

Physical change

40.

Chemical or Physical Change?


Four hydrogen atom nuclei go through the process of nuclear fusion to form one helium atom

a)

Chemical change

b)

Physical change

41.

Which of the following is a chemical property?

a)

malleability

b)

solubility

c)

reactivity

d)

sublimation

42.

Which of the following is NOT chemical property?

a)

flammability

b)

combustibility

c)

reactivity

d)

density

43.

Which of the following is a sign of a chemical change

a)

a liquid evaporating

b)

a precipitate forming

c)

mixing of different substances

d)

a solid dissolving in a liquid

44.

Which of the following is NOT a sign of a chemical change

a)

change in odor

b)

density

c)

change in temperature

d)

bubbles are produced

45.

What ALWAYS must happen for a chemical change to occur?

a)

a new substance forms with different properties

b)

a new substance forms but must still have the same properties

c)

a change in size and shape has to happen

d)

a change in state of matter always occurs with a chemical change