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Grade 9 · Science · Unit 1 of 13

Our Solar System

Planets, the Moon, seasons and eclipses.

What your child practises

Practises the solar system, Earth's motions, seasons, Moon phases and eclipses. It follows the Grade 9 science skill descriptors on the solar system in the New Brunswick curriculum.

New Brunswick Curriculum skill descriptor: Scientific Literacy: Sensemaking · explanations about the solar system based on evidence from inquiry

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

    What is at the centre of our solar system?

    • Jupiter
    • Earth
    • the Sun
    • the Moon
  2. Question 2

    What causes the Moon’s phases?

    • Earth's shadow on the Moon each night
    • the Moon changes size
    • clouds cover it
    • we see different amounts of its sunlit half as it orbits Earth
  3. Question 3

    What are Jupiter and Saturn mostly made of?

    • water only
    • rock and metal
    • hydrogen and helium
    • sand
  4. Question 4

    What causes day and night?

    • Earth orbiting the Sun
    • Earth rotating on its axis
    • the Moon blocking the Sun
    • clouds
  5. Question 5

    What is a lunar eclipse?

    • the Sun goes out
    • the Moon passes between Earth and the Sun
    • Earth passes between the Sun and the Moon
    • the Moon explodes
  6. Question 6

    What is the Sun’s energy source?

    • nuclear fusion
    • electricity
    • burning coal
    • chemical batteries