Let’s Try (Evaluation)
Directions: Read and answer the question carefully. Write your answer on your answer sheet.
1. How can water be change to water vapor?
A. by heating C. by adding sugar
B.by cooling D. by freezing
2. What will happen to ice when removed from the freezer?
A. It will be changed to gas. C. It will be changed to solid.
B. It will be changed to liquid. D. It will be changed to vapor.
Global Warming Deforestation

Air Pollution Water Pollution

Ways to Solve
Environmental
Problem

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3. A material/substance that is heated can be changed in many ways. Which of the
following is an example of a change that results in a production of new substance due to the
application of heat?
I. frying egg
II. grilling meat
III. freezing water
IV. molding clay
A. I and II B. II and III C. II, III, and IV D. I, II, III and IV
4. Mary bakes cookies. While baking, she noticed that the color and texture of the
cookies had changed.What condition caused those changes?
A. presence of moisture C. absence of oxygen
B. application of heat D. absence of heat
5. Describe what happens to water when placed in the freezer?
A. it changes to solid
B. it remains the same
C. it changes to gas
D. it changes to vapor
6. What evidence shows that fireworks display underwent chemical change?
I. heat and light are released
II. sound energy is released
III. smoke and ashes scattered in the air.
IV. it changed its size and shape, but the composition remains the same
A. I and II B. I, II and III C. I, II and IV D. I, II, III and IV
7. Which of the following is a sign that a chemical change is taking place in a material?
A. It releases odor. C. It dissolves in water
B. It melts at high temperature. D. It breaks into pieces
8. Which of the following is NOT an evidence of chemical change?
A. change in state of matter C. formation of gas
B. change in color D. precipitate forms
9. Bubbles can be seen instantly when baking soda is mixed with vinegar.The
formation of bubbles are evidence of which of the following?
A. A gas is formed as a reaction when baking soda is mixed with vinegar.
B. Baking soda dissolves in vinegar when they are mixed.

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C. Vinegar turns into alcohol when it is mixed with baking soda.
D. A precipitate is formed when baking soda and vinegar are mixed.
10. It is believed that the thinning of the ozone layer is caused by chlorofluorocarbons.
In which product these gases are being used?
A. electric heaters and clothes driers
B. aerosol spray cans and refrigerants
C. cigarette lighters and air-conditioners
D. television, computer, and aerosol spray