Science 5 - Summative Test First Quarter

Gold can be shaped into rings. What property does gold have?

• a. brittleness

• b. elasticity

• c. hardness

• d. malleability

Wood can be made into chopping boards. What property does wood have?

• a. brittleness

• b. elasticity

• c. hardness

• d. softness

Burning of wood is an example of physical change.

• True

• False

Melting of an ice cube is an example of chemical change.

• True

• False

It refers to the process where the substance burns in the presence of oxygen.

• a. Rusting

• b. Combustion

• c. Oxidation

What is the caused by reaction of iron with oxygen present in the air?

• a. Humidity

• b. Moisture

• c. Rusting

The following are the ways to prevent rusting, except one.

• a. Keep it clean and dry.

• b. Apply paint.

• c. Let it wet and moist.

What will happen if one element needed for combustion is not present?

• a. The fire will continue its flame.

• b. Combustion will not occur.

• c. There should be heat, fuel and oxygen

Which of the following shows the absence of oxygen in a material?

• a. combustion

• b. Lighted candle covered with glass

• c. Rusting

Which of the following phases involves chemical change?

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