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Natural science unit 3
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What’s this?
esophagus
What’s this?
intestines
What’s this?
trachea
What’s this?
lungs
What’s this?
stomach
What’s this?
liver
The ____________ system helps your body eliminate waste.
excretory
What are the two kinds of blood vessels?
veins and arteries
The ____________ system moves blood around the body.
circulatory
What does the heart do?
It pumps blood around the body.
Blood carries two important things, _________ and ___________ around the body.
nutrients and oxygen
What takes blood to the heart?
Veins
What takes blood away from the heart to other parts of the body?
arteries
Muscles and organs are made up of ____________.
Tissues
What are the main organs of the circulatory system?
The heart and blood vessels
What are the main organs of the respiratory system?
Trachea and lungs
What are the main organs of the digestive system?
Esophagus, stomach, small intestine, large intestine, (and liver)
When we breathe out, we exhale __________.
carbon dioxide
Your lungs take in oxygen and pass it to the ___________.
Blood
The _____________ system allows us to breathe.
respiratory
What’s the tube that connects the mouth to the lungs called?
Trachea
___________ leaves your body when you breathe out (exhale)
Carbon dioxide
What are the holes in your nose called?
Nostrils
What's the muscle that helps your breath?
Diaphrgm
Nutrients pass from the ____________ to the blood.
small intestine
Put these words in the correct order: LARGE INTESTINE, MOUTH, ESOPHAGUS, RECTUM, STOMACH, SMALL INTESTINE
Mouth, esophagus, stomach, small intestine, large intestine, rectum
What’s the longest part of the digestive system?
The small intestine
Food travels down the __________ to the stomach.
Esophagus
What is the liquid in our mouth called?
Saliva
What is the final part of the digestive system?
Rectum