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Human Body & Health

Grade 1 · On-level practice · 8 questions · Version PG-1E4SMGQ-1I9W

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1.What do muscles do?
2.Name one job of the skeleton.
3.What protects the brain?
4.Where does digestion begin?
5.Which system sends messages through nerves?
6.Which cells carry oxygen?
7.Which body part pumps blood?
8.Why do people need sleep?

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 3
  1. What do muscles do?They contract to move body parts
  2. Name one job of the skeleton.Support and protect the body
  3. What protects the brain?The skull
  4. Where does digestion begin?In the mouth
  5. Which system sends messages through nerves?The nervous system
  6. Which cells carry oxygen?Red blood cells
  7. Which body part pumps blood?The heart
  8. Why do people need sleep?To help the body and brain recover

Worked example

Connect a structure to its function and explain how body systems work together.

Common mistake

Naming an organ without explaining its system role.

Helpful hint

Trace what enters, changes, and leaves the system.