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Human Body & Health

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

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

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 10
  1. Which cells carry oxygen?Red blood cells
  2. How do lungs and circulation interact?Lungs add oxygen to blood, which carries it to cells
  3. What do kidneys remove from blood?Wastes and extra water
  4. How do vaccines help?They prepare immunity to recognize a pathogen
  5. Why does heart rate rise during exercise?Muscles need oxygen and nutrients faster
  6. What carries oxygen from lungs to cells?The circulatory system
  7. What is the immune system's job?Defend against harmful pathogens
  8. Why is a balanced diet useful?It supplies varied nutrients

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.