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Human Body & Health

Grade 2 · Stretch challenge · 8 questions · Version PG-GXE2E8-11AV

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1.Why is a balanced diet useful?
2.What do kidneys remove from blood?
3.Name one job of the skeleton.
4.Where does digestion begin?
5.What do muscles do?
6.Which system sends messages through nerves?
7.Which cells carry oxygen?
8.How do vaccines help?

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 19
  1. Why is a balanced diet useful?It supplies varied nutrients
  2. What do kidneys remove from blood?Wastes and extra water
  3. Name one job of the skeleton.Support and protect the body
  4. Where does digestion begin?In the mouth
  5. What do muscles do?They contract to move body parts
  6. Which system sends messages through nerves?The nervous system
  7. Which cells carry oxygen?Red blood cells
  8. How do vaccines help?They prepare immunity to recognize a pathogen

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.