Materials

The main components of air is

• oxygen

• nitrogen

• carbon dioxide

• methane

Why can you not light a match in outer space?

• Because it is too windy

• Because it is too hot

• Because it is too cold

• Because there is no air

The Ozone layer is in the

• Troposphere

• stratosphere

• thermosphere

• Exosphere

Which is true.

Hydrogen is ...

• used in fizzy drinks

• is used in helium balloons

• highly falammable

• not found in air

A living Tree is .......

• 10 % water

• 25 % water

• 50 % water

• 75 % water

How much water is in an adult's body?

• About 7 litres

• About 37 litres

• About 67 litres

• About 80 litres

Your body temperature should be about

• 27 degrees

• 37 degrees

• 47 degrees

• 39 degrees

Synthetic materials are

• naturally occurring materials

• manufactured materials

• material not found on Earth

• materials under ground

Which gas is used to make fizzy drinks?

• Carbon dioxide

• argon

• Nitrous oxide

• nitrogen

The only substance that occurs naturally as a solid, a liquid and a gas is

• water

• carbon

• oil

• oxygen