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Human Body & Health

Grade 2 · Stretch challenge · 8 questions · Version PG-K99APW-11AV

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1.What do muscles do?
2.Name one job of the skeleton.
3.Which cells carry oxygen?
4.Why is a balanced diet useful?
5.Which system sends messages through nerves?
6.What do kidneys remove from blood?
7.Where does digestion begin?
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 15
  1. What do muscles do?They contract to move body parts
  2. Name one job of the skeleton.Support and protect the body
  3. Which cells carry oxygen?Red blood cells
  4. Why is a balanced diet useful?It supplies varied nutrients
  5. Which system sends messages through nerves?The nervous system
  6. What do kidneys remove from blood?Wastes and extra water
  7. Where does digestion begin?In the mouth
  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.