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Human Body & Health

Grade 4 · Building confidence · 8 questions · Version PG-K4OOAM-1E99

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1.How do vaccines help?
2.Which system sends messages through nerves?
3.Name one job of the skeleton.
4.What do kidneys remove from blood?
5.Why is a balanced diet useful?
6.Why do people need sleep?
7.Where does digestion begin?
8.Which cells carry oxygen?

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 13
  1. How do vaccines help?They prepare immunity to recognize a pathogen
  2. Which system sends messages through nerves?The nervous system
  3. Name one job of the skeleton.Support and protect the body
  4. What do kidneys remove from blood?Wastes and extra water
  5. Why is a balanced diet useful?It supplies varied nutrients
  6. Why do people need sleep?To help the body and brain recover
  7. Where does digestion begin?In the mouth
  8. Which cells carry oxygen?Red blood cells

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.