DIRECTIONS:Read the questions and the choices carefully. ENCIRCLE the LETTER of the
correct answer.
For item # 1 to 3, refer on the diagram below.
Based on the numbers given, which is the correct processes involved?
The Watar yote
boc
fooo
2
3
1
Paraolattor
1. A. Condensation B. Evaporation C. Melting
D. Precipitation
2. A. Condensation B. Evaporation C. Melting
D. Precipitation
3. A. Condensation B. Evaporation C. Melting
D. Precipitation
4. Which best describes chemical change?
A. It does not produce energy.
C. It produces new substances.
B. It is generally easy to reverse.
D. Itinvolves melting and freezing.
5. Which of the following factors usually speeds up chemical change?
A. heat and light
C. oil and heat
B. light and water
D. oil and water
6. Which of the following is an example of a physical change?
A. baking a cake
C. cutting of paper
B. rusting of car
D. mixing an acid and a base
7. Which of the following shows a chemical change?
A. freezing of water
C. fermenting grapes
B. breaking a glass
D. sawing a board in half
8. What type of change it occurs when sandpaper smooth a piece of wood?
A. Change of state
C. Physical change
B. Change of matter
D. Chemical change
9. A granular substance is added to a liquid. Which of the following would provide evidence to
suggest a chemical change has taken place?
A. The liquid gives off heat
C. The volume of the water increases.
B. The granules dissolve completely.
D. The granules seem to get smaller.
10. A student observes some sugar as it is heated and burns. The student concludes that a chemical
reaction has occurred. Which of the following observations about the burning sugar provides
evidence of chemical reaction?
A. Heat is added to the sugar crystals
C. Gas is produced as the sugar turns black.
B. The sugar melts and becomes a liquid. D. No evidence of chemical reaction is present.
11. Why is chemical change permanent?
A. Change in mixture
C. Change in physical appearance
B. Change in atom
D. Change in composition of material
12.Which describes energy in the process of freezing and condensation?
B. Energy bonds.
A. Energy is lost
C. Energy breaks. D. Energy increases.​