Assessment No. 2 - Science 5

A change in an object's appearance, shape, and size without changing its composition is known as _____

• a. Chemical change

• b. Physical change

Which one is an example of a physical change?

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It rained yesterday, but today there are no puddles left on the ground. What process caused this to happen?

• a. condensation

• b. evaporation

• c. sublimation

• d. deposition

TRUE or FALSE: Sublimation is a process where it turns solid to gas

• a. True

• b. False

When a fire extinguisher is used, the gas inside the tank turns into solid powder. What type of change occurred?

• a. chemical change

• b. deposition

• c. sublimation

• d. condensation

Condensation is a process where gas turns into

• a. solid

• b. gas

• c. liquid

Which does not belong to the group?

• a. Melting

• b. Evaporation

• c. Freezing

• d. Combustion

TRUE or FALSE: The application of heat to some substances can cause a physical change, but NOT a chemical change.

• a. True

• b. False

TRUE or FALSE: The presence of oxygen plays an important role in chemical change.

• a. True

• b. False

Which is an example of a chemical change?

• a. putting dry ice in a beaker of water

• b. painting a fence

• c. crushing a can

• d. burning wood