Science quiz - mixed questions

What happens when the diaphragm moves upwards?

• The chest cavity contracts.

• This increases the space in your chest cavity, and your lungs expand into it.

• The muscles between your ribs also help enlarge the chest cavity.

• The diaphragm goes downwards.

...........................................do not produce flames but generate heat.

• kerosene.

• petrol.

• oil.

• coal

this plant grows in the .......................... areas

...................... is keeping our bodies clean.

• germs.

• personal hygiene.

• washing with coal.

• soap and water.

• immune system.

This picture sign in science indicates?

• Danger.

• death.

• Piracy.

• Toxic/ poison.

• evil.

How many sets of teeth do we have?

• pass

• none

• 2

• 10

• 5

name three components of soil.

In science we breathe in ............................

• life

• earth

• air

• love