Science Quiz for Grade 5

Which of the following is a good characteristic of all kinds of matter?

• They have definite color and shape.

• They have mass and occupy space.

• They have no definite color and shape.

• They produce sound and odor.

Which is a good way of making water safe to drink?

• Add chemicals to it.

• Boil it for at least a minute.

• Keep inside the refrigerator.

• Use cloth as filter.

Smoke coming from the vehicles mixes with air. What will happen with the air?

• Air becomes fresh.

• Air moves faster.

• Air becomes polluted.

• Air is heated.

Which of the following describes a physical change?

• burning of paper

• burning of wood

• hardening of clay

• souring of milk

What happens to the substance in a chemical change?

• Breaks down into simpler substances.

• Forms a new substance with different properties.

• Larger quantity of the same substance.

• Physical state change, same chemical composition.

Why is boiled water safe to drink?

• Boiling dissolves all solid particles.

• Boiling removes solid particles.

• Boiling improves its taste.

• Boiling kills the germs present in the water.

What is the result of a chemical change?

• A change in shape or size.

• A change in state (solid, liquid, gas)

• A mixture of the original substance.

• A new substance with different properties.

Sugar, wood and paper turned black when burned. What substance do they have in common?

• carbon

• nitrogen

• oxygen

• moisture

Why is the presence of chlorofloro- carbon in the air is harmful?

• It darkens the cloud.

• It makes the ozone layer thin.

• It makes the ozone layer thick.

• It prevents the ultra violet rays coming from the sun.

The government encourages motorist to use unleaded fuel. Why?

• It is less expensive than leaded gasoline.

• It is more readily available.

• It is safer for vehicle engines.

• It is less harmful to people and the environment.