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Human Body & Health

Grade 2 · On-level practice · 8 questions · Version PG-6N7HNR-1SLX

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1.How do vaccines help?
2.Why is a balanced diet useful?
3.What do muscles do?
4.Which system sends messages through nerves?
5.Where does digestion begin?
6.Name one job of the skeleton.
7.What do kidneys remove from 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 5
  1. How do vaccines help?They prepare immunity to recognize a pathogen
  2. Why is a balanced diet useful?It supplies varied nutrients
  3. What do muscles do?They contract to move body parts
  4. Which system sends messages through nerves?The nervous system
  5. Where does digestion begin?In the mouth
  6. Name one job of the skeleton.Support and protect the body
  7. What do kidneys remove from blood?Wastes and extra water
  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.