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Human Body & Health

Grade 5 · Building confidence · 8 questions · Version PG-W2Q47F-1RJ2

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1.How do lungs and circulation interact?
2.How do vaccines help?
3.Which cells carry oxygen?
4.Which system sends messages through nerves?
5.Why does heart rate rise during exercise?
6.What is the immune system's job?
7.Why is a balanced diet useful?
8.What carries oxygen from lungs to cells?

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 17
  1. How do lungs and circulation interact?Lungs add oxygen to blood, which carries it to cells
  2. How do vaccines help?They prepare immunity to recognize a pathogen
  3. Which cells carry oxygen?Red blood cells
  4. Which system sends messages through nerves?The nervous system
  5. Why does heart rate rise during exercise?Muscles need oxygen and nutrients faster
  6. What is the immune system's job?Defend against harmful pathogens
  7. Why is a balanced diet useful?It supplies varied nutrients
  8. What carries oxygen from lungs to cells?The circulatory system

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.