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Human Body & Health

Grade 5 · Stretch challenge · 8 questions · Version PG-1VCDSJH-1QHO

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

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

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.