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Human Body & Health

Grade 1 · On-level practice · 8 questions · Version PG-1DKTF2S-1I9W

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1.Which body part pumps blood?
2.Which sense organ detects light?
3.What helps you breathe?
4.Where does digestion begin?
5.What protects the brain?
6.Which cells carry oxygen?
7.Which system sends messages through nerves?
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 1
  1. Which body part pumps blood?The heart
  2. Which sense organ detects light?The eyes
  3. What helps you breathe?The lungs
  4. Where does digestion begin?In the mouth
  5. What protects the brain?The skull
  6. Which cells carry oxygen?Red blood cells
  7. Which system sends messages through nerves?The nervous system
  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.