To obtain oxygen and get rid of carbon dioxide we use ....
Respiratory system

Quiz
•
Science
•
4th Grade
•
Easy
science fun
Used 13+ times
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Circulatory system
Excretory system
Respiratory system
Digestive system
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When we inhale we are...
breathing in
letting air out
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When the air comes in, our diaphragm..
Contracts
Relaxes
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When we let the air out, our diaphragm...
Contracts
Relaxes
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The main organ of our respiratory system is...
heart
stomach
bladder
lungs
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nº1
trachea
nose
lungs
bronchi
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nº4
bronchi
larynx
trachea
oesophagus
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