TH What part of the house can you usually find these materials
a. in the bathroom
b. in the bedroom
in the kitchen
d. in the living room
2. Which of the following is the ability of the material to easily decompose?
a. biodegradability
c. flammability
b. combustibility
d. reactivity
3. Aling Nena is fond of buying air freshener. Which will be good for the environment and best
alternative to use?
a. peelings of calamansi
c. mothballs
b. cologne
d. detergent powder
4. Which of the following results physical change in an object?
a. burning a piece of paper
b. chewing a piece of bread
c. cutting of wood into smaller pieces
d. mixing paint with a thinner
5. Which of the following activities showed chemical change due to application of heat?
a. pancake mixing
C. cooking of food
b. cutting of wood
d. rusting of nail
6. Which of the following will produce rust when it is wet?
a. A nail
c. a rubber band
b. A glass
d. a plastic spoon
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