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Worksheets

Science

Total questions: 25

Worksheet time: 16mins

Name
Class
Date
1.

When we breathe out the diaphragm...

a)

Contracts

b)

Relaxes

2.

When we breath in the diaphragm...

a)

Contracts

b)

Relaxes

3.

NUMBER 3:

a)

Pharynx

b)

Trachea

c)

Bronchi

d)

Alveoli

4.

NUMBER 6:

a)

Lungs

b)

Trachea

c)

Mouth

d)

Alveoli

5.

NUMBER 2:

a)

Pharynx

b)

Bronchi

c)

Alveoli

d)

Lungs

6.

NUMBER 1:

a)

lungs

b)

pharynx

c)

mouth

d)

alveoli

7.

We breathe in carbon dioxide and breathe out oxygen

a)

True

b)

False

8.
What is the main function of the respiratory system?
a)
to provide oxygen and remove carbon dioxide from the body
b)
to bring oxygen to the body
c)
to break down food and absorb nutrients
d)
to remove oxygen from the body and deliver carbon dioxide
9.
The beginning point of the respiratory system where air is taken into the body.
a)
lung
b)
diaphragm​
c)
nose​
d)
trachea​
10.
Tiny air sacs in the lungs that are the site of gas exchange between the lungs and blood.
a)
alveoli​
b)
relax
c)
diaphragm​
d)
nose
11.
A wide muscle that separates the chest cavity from the abdominal cavity and aids in the inflation of the lungs.
a)
diaphragm​
b)
heart
c)
nose
d)
trachea
12.
The tube in the body through which air moves as it travels to and from the lungs;the windpipe.
a)
heart
b)
bone
c)
blood vessel
d)
trachea 
13.
The process of taking in oxygen and releasing carbon dioxide from the body.
a)
transpiration 
b)
respiration 
c)
digestion
d)
relaxation
14.
Organs of the respiratory system that bring oxygen-rich air into​ ​the body and send oxygen-poor air out of the body.
a)
heart
b)
muscles
c)
lungs
d)
bones
15.
The system of the body that brings oxygen into the body and releases carbon dioxide.
a)
respiratory​ ​system​
b)
skeletal system
c)
muscular system
d)
circulatory system
16.

Also called the windpipe

a)

Larynx

b)

pharynx

c)

trachea

d)

alveoli

17.

What do we let out when we exhale?

a)

oxygen

b)

Carbon dioxide

c)

lungs

18.

What do we take in when we inhale?

a)

carbon dioxide

b)

oxygen

c)

lungs

19.
The Trachea splits into 2 branches and each of these goes into 1 of the lungs.
a)
Bronchioles
b)
Alveoli
c)
Bronchi
d)
Esophagus
20.

What are of illnesses that affect our repiratory system, except ?

a)

Asthma

b)

Bronchioulus

c)

Emphysema

d)

Lung cancer

21.

........ our nostrils removes dust from the air we breathe in.

a)

The Nose

b)

Windpape

c)

The Tracea

d)

The hairs

22.

Coughing, sneezing, and runny nose are all _______________ of the common cold.

a)

access points

b)

abrasions

c)

organisms

d)

symptoms

23.

If a person has pneumonia, which part of the respiratory system is infected?

a)

throat

b)

sinuses

c)

lungs

d)

nose

24.

Nose is the sense organ for _________.

a)

hearing

b)

feeling

c)

smelling

25.

In a system, each part's job is called its _______ .

a)

synthesize

b)

function

c)

engineer

d)

machine