Digestive System Exploration
A Grade 3 science worksheet focusing on the human digestive system, its parts, and functions.
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Digestive System Exploration
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Read each question carefully and answer to the best of your ability. Good luck!
Look at the diagram of the human digestive system below. Write the name of each part next to its number.
1.
2.
3.
4.
5.
6.
1. What is the process of breaking down food into small pieces called?
Breathing
Digestion
Circulation
Absorption
2. Which organ helps chew food and mix it with saliva?
Stomach
Small Intestine
Mouth
Heart
1. The is a long tube that carries food from your mouth to your stomach.
2. In the stomach, food is mixed with acids.
3. Most of the nutrients from food are absorbed in the intestine.
4. Undigested food goes into the intestine.
1. The digestive system helps your body get energy from food.
True
False
2. Food travels through the digestive system in reverse order.
True
False
1. What happens to the food after it leaves your stomach?
2. Why is it important to chew your food well?