WorksheetsS5P1 - Physical and Chemical Changes Test
Total questions: 37
Worksheet time: 19mins
Name
Class
Date
1.
1. Ice cream melting
a)
Physical
b)
Chemical
2.
2. Tearing paper
a)
Physical
b)
Chemical
3.
3. Freezing water into ice
a)
Physical
b)
Chemical
4.
4. Baking a cake
a)
Physical
b)
Chemical
5.
5. Sanding a piece of wood
a)
Physical
b)
Chemical
6.
6. Dying your hair from black to blonde
a)
Physical
b)
Chemical
7.
7. Which statement about atoms is true?
a)
They are all the same.
b)
All substances are made of just one kind.
c)
You can see them with your eyes.
d)
They are too small to be seen without a microscope.
8.
8. Which of the following is a chemical reaction?
a)
Wood getting hot in the sun
b)
Salt being added to water
c)
Clouds forming
d)
Meat cooking on a grill
9.
9. Joey heated ice until it became a liquid. Which term identifies this change?
a)
boiling
b)
freezing
c)
condensing
d)
melting
10.
10. A trait (or characteristic) of a substance by itself is called a ___________________.
a)
Atom
b)
Chemical change
c)
Physical property
d)
Chemical property
11.
11. Sandra heated water until it became a gas. Which term identifies this change?
a)
boiling
b)
freezing
c)
condensing
d)
melting
12.
12. Which of the following is a chemical reaction?
a)
Hydrogen and oxygen combine to make water
b)
Liquid water freezes and becomes ice
c)
A rock is crushed into small pieces
d)
Sugar dissolves in hot tea (not a molecular change)
13.
13. A chocolate cake has a mass of 32 grams. If cut into 4 pieces, how much will each piece weigh?
a)
9
b)
8
c)
4
d)
6
14.
14. Grinding chalk into powder
a)
Physical
b)
Chemical
15.
15. If you put a nail in a bottle with no water, will it rust?
a)
Yes because it happens to metal objects.
b)
No because there is no water.
c)
Maybe, if there is water vapor in the bottle it will react with oxygen and the nail to form rust.
16.
16. What is matter?
a)
Two objects react to form a new object
b)
The weight of an object
c)
Anything that has mass and takes up space
d)
All dogs "matter"
17.
17. The production of light is evidence of a
a)
Physical Change
b)
Chemical Change
18.
18. Tom mixes two substances together. There are not labeled and he doesn't know what they are. He sees bubbles form and the substances turn from white to pink. What has occurred?
a)
Physical Change
b)
Chemical Change
19.
19. A change in a substance where the substance remains the same after the change has occurred.
a)
Physical Change
b)
Chemical Change
20.
20. A change that causes an object to change shape is a
a)
Physical Change
b)
Chemical Change
21.
21. Which of the following indicate that a chemical change has occurred?
a)
Change in temperature and a change in shape
b)
A change in shape and a change in color
c)
A change in color and a change in temperature
d)
A change in smell and a change in shape
22.
22. A physical change where matter changes, for example, from a liquid to a gas, is called a ___________.
a)
Change of Reaction
b)
Change of State
c)
Chemical Reaction
d)
Production of liquid
23.
23. What happens in all chemical changes?
a)
Changes in the state of matter
b)
A new substance is formed
c)
An explosion
d)
Bubbles are produced
24.
24. Squeezing oranges to make juice
a)
Physical Change
b)
Chemical Change
25.
25. Roasting marshmallows is an example of
a)
Physical Change
b)
Chemical Change
26.
26. Butter melting is a
a)
Physical Change
b)
Chemical Change
27.
27. Mowing the lawn
a)
Physical Change
b)
Chemical Change
28.
28. Burning leaves
a)
Physical Change
b)
Chemical Change
29.
29. Mixing salt with water to sooth a sore throat
a)
Physical Change
b)
Chemical Change
30.
30. Fireworks exploding
a)
Physical Change
b)
Chemical Change
31.
31. Water being absorbed by a paper towel
a)
Physical Change
b)
Chemical Change
32.
32. How are changes in states of matter caused?
a)
By adding reactive chemicals.
b)
By adding or removing heat.
c)
By physically breaking them down.
d)
Combining baking soda and vinegar
33.
33. Which of the following is NOT evidence of a chemical reaction?
a)
color change
b)
bubbles
c)
breaking
d)
heat release
34.
34. If you were to test two substances for a change, how would you determine whether it is a physical change or a chemical change?
4 lines
35.
35. Tommy is planning to perform an experiment with a balloon, baking soda, and vinegar. He wants to know what the mass of the baking soda is. The total mass of all materials is 440 grams. The vinegar is 110 grams. The balloon is 40 grams. What is the mass of the baking soda?
4 lines
36.
36. Molly wants to teach her little sister about chemical changes. What are the 4 most important things that Molly should tell her sister? (Use complete sentences)
4 lines
37.
37. What is the main difference between a physical change and a chemical change? (Use complete sentences)
4 lines
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