THE RESPIRATORY SYSTEM

We take in air and take out air through our ...

• eye

• ear

• nose

• tongue

Respiration is the process in which our cells use oxygen and sugar from the food we eat to produce energy, carbon dioxide and water.

• true

• false

What happens during breathe in?

• The lungs expand and the diaphragm moving down.

• The lungs become smaller and the diaphragm moving up.

What happens during breathe out?

• Our ribs move out and up, the lungs expand

• Our ribs move down, the lungs become smaller

What the following is common illnesses related to our respiratory system?

• asthma

• burnt

• blind

Exercising regularly keep our respiratory system healthy.

• true

• false

How do butterflies breathe?

• Use their lungs

• Use their moist skin

• Use their gills

• Use their opening in body

Which of the following animal breathe using their gills?

• shark

• bat

• clown fish

• dolphin

Frogs used their moist skin to breathe in water.

• True

• False

The main organs of the human respiratory system are ....

• nose, windpipe, lungs

• nose, mouth, windpipe

• mouth, windpipe, air tubes

• nose, ribs, diaphragm