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Human Body & Health

Grade 5 · Building confidence · 8 questions · Version PG-X6OIZB-1RJ2

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1.What carries oxygen from lungs to cells?
2.Why is a balanced diet useful?
3.How do vaccines help?
4.How do lungs and circulation interact?
5.Which system sends messages through nerves?
6.Why does heart rate rise during exercise?
7.What maintains stable internal conditions?
8.What do kidneys remove from blood?

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. What carries oxygen from lungs to cells?The circulatory system
  2. Why is a balanced diet useful?It supplies varied nutrients
  3. How do vaccines help?They prepare immunity to recognize a pathogen
  4. How do lungs and circulation interact?Lungs add oxygen to blood, which carries it to cells
  5. Which system sends messages through nerves?The nervous system
  6. Why does heart rate rise during exercise?Muscles need oxygen and nutrients faster
  7. What maintains stable internal conditions?Homeostasis
  8. What do kidneys remove from blood?Wastes and extra water

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.