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Human Body & Health

Grade 1 · On-level practice · 8 questions · Version PG-1U4TIGV-1I9W

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

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 11
  1. Which cells carry oxygen?Red blood cells
  2. Which system sends messages through nerves?The nervous system
  3. What do muscles do?They contract to move body parts
  4. Where does digestion begin?In the mouth
  5. Name one job of the skeleton.Support and protect the body
  6. Which body part pumps blood?The heart
  7. What helps you breathe?The lungs
  8. What protects the brain?The skull

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.