Subscribe

Grade 8 · Science · Unit 10 of 16

Human Body Systems

Breathing, blood, digestion and how the body responds

What your child practises

The main jobs of the respiratory, circulatory, digestive, excretory and nervous systems, how they work together, and what affects healthy function, such as exercise and air quality.

Nunavut Curriculum approved guide: Nunavut adaptation of Alberta Science 7–9 (2003), Unit B: Cells and Systems · body systems for respiration, circulation, digestion, excretion and sensory awareness, and how the body responds to changing conditions

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Where in the lungs does oxygen pass into the blood?

    • the alveoli
    • the stomach
    • the trachea
    • the esophagus

  2. Question 2

    Put the path of food through the digestive system in order.

    • 🍽️Stomach
    • 🌀Small intestine
    • 💧Large intestine
    • 👄Mouth

  3. Question 3

    A hand touches a hot pot and pulls away before the person feels pain. What is this quick response called?

    • circulation
    • digestion
    • a reflex
    • excretion

  4. Question 4

    Why does your heart beat faster when you exercise?

    • Your blood needs to stop.
    • Your muscles need more oxygen and nutrients delivered faster.
    • Your heart is trying to cool the air.
    • Your lungs need to rest.

  5. Question 5

    Where does most digestion of food happen and nutrients get absorbed?

    • the heart
    • the kidneys
    • the small intestine
    • the lungs

  6. Question 6

    Which body system does each organ belong to?

    Sort into: 🫁 Respiratory · 🍽️ Digestive

    • 🌀small intestine
    • 🌬️trachea (windpipe)
    • ↕️diaphragm
    • 💧large intestine
    • 🫧alveoli
    • 🍽️stomach
    • ⬇️esophagus
    • 🫁lungs

More Grade 8