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Grade 5 · Science & Technology · Life Systems

Human organ systems and health

What they’re learning

Your child is learning about major human organ systems and how healthy choices can support them. The emphasis is on relationships among structures, functions, and overall health.

Explain it to my child

Your body has teams of organs that do different jobs. The respiratory system brings in oxygen; the circulatory system moves oxygen and nutrients around the body.

Try it together

After a safe minute of light activity, compare breathing rate and pulse with resting observations. Discuss why both respiratory and circulatory systems respond together.

Practice

  1. Which system includes the heart and blood vessels?
  2. Which system brings oxygen into the body?
  3. Why does heart rate increase during exercise?
  4. Name one choice that supports body-system health.
  5. Why are body systems described as interacting?

Check understanding

  • Can your child match major organs with systems/functions?
  • Can they explain one interaction between two systems?
Parent answer guide
  1. Circulatory system
  2. Respiratory system
  3. Working muscles need more oxygen/nutrients and waste removal
  4. Sleep, activity, balanced nutrition, hydration, etc.
  5. One system’s work supports and depends on others

Ontario curriculum connection

Grade 5 · Science & Technology
Life Systems · Human Health and Body Systems

Curriculum expectation: Specific expectation omitted because Lessonfield has not yet verified an expectation-level mapping for this guide.

Ontario Curriculum, Science and Technology, Grades 1–8 (2022) ↗

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