Free Printable HUMAN RESPIRATION YEAR 4

Worksheets

Name

Class

Date

What is the organ for human respiration?

lung

trachea

gills

heart

What is the gas inhaled by human?

carbon dioxide

oxygen

carbon monoxide

air

What will happen if there is no oxygen in Earth?

Living things will become bigger.

Living things will inhale carbon dioxide.

Living things will die.

Nothing will happen to the living things.

What is the gas exhaled by human?

Oxygen

Carbon dioxide

Carbon monoxide

Nitrogen

Choose the correct path of oxygen inhaled by human the our body.

lungs -> nose -> trachea

trachea -> nose -> lungs

nose -> trachea -> lungs

lungs -> trachea -> nose

Reset

Similar Resources on Wayground