SCUENCE QUIZ BEE

1. Which of the following is NOT part of the waste management technique?

• a. recycie

• b. reduce

• c. resolve

• d. repair

2. Which of the following is an example of a chemical change?

• a. molding clay

• b. rusting ofbiron

• c. dissolving salt in water

• d. freezing of uce

3. Which of the following is NOT part of the water cycle process?

• a. evaporation

• b. condensation

• c. precipitation

• d. sedimentation

4. Which of the following results in physical change in matter?

• a. crushing of aluminum cans

• b. burning of dried leaves

• c. composting technique

• d. spoiling of food

5. If you would place some cooking oil inside the freezer, which of the following might happen?

• a. The oil will lose its property

• b. The oil will turn into a solid

• c. The oil will become gas

• d. The oil will become a pure semiliquid

6. A physical change occurs when there are changes in the _____ of a substance but does not affect its chemical properties.

• a. atoms

• b. apperance

• c. shape

• d. composition

7. Donating old items like toys, shoes, bags, and clothes so that others can still use them is an example of what technique?

• a. reduce

• b. reuse

• c. recycle

• d. restore

8. Combustion of wastes or incineration coverts wastes into energy that can supply thousands of houses in a particular country. The following evidences of chemical reaction may happen due to incerenation except _____.

• a. release of heat

• b. release of gas

• c. chamge in color

• d. change in state

9, Burning of LPG gas in the stove is an example of ______ change.

• a. physical

• b. chemical

• c. nuclear

• d. atomic

10. Which of the following is not chemical change?

• a. ripening of magoes

• b. rotting of meat

• c. grating of cheese

• d. digestive system