Grade 6 Science: Intake and Output
This worksheet explores the concepts of intake and output in living organisms, focusing on the human body's digestive and excretory systems.
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Grade 6 Science: Intake and Output
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Read each question carefully and answer to the best of your ability. Some questions may require you to refer to the diagram provided.
1. Which of the following is an example of 'intake' for the human body?
Breathing out carbon dioxide
Eating a sandwich
Sweating
Excreting waste
2. The process where the body gets rid of waste products is called:
Digestion
Absorption
Excretion
Circulation
3. The primary organ responsible for filtering waste from the blood to produce urine is the .
4. When you eat food, it is considered an act of into the body.
5. The large intestine plays a role in absorbing water and forming .
6. Look at the diagram of the human digestive system below. Name three organs involved in the intake and processing of food.

7. Describe one way your body maintains a balance of water intake and output.
8. All the water you drink is absorbed by your body; none is ever excreted.
True
False
9. The carbon dioxide we exhale is an example of an output from the respiratory system.
True
False
Match each term on the left with its definition on the right.
10. Intake
a. The process of taking substances into the body
11. Output
b. Substances released or expelled from the body
12. Digestion
c. Breaking down food into smaller molecules