New
New

    The solar system

    I can describe the main features of the solar system.

    New
    New

      The solar system

      I can describe the main features of the solar system.

      These resources will be removed by end of Summer Term 2025.

      Switch to our new teaching resources now - designed by teachers and leading subject experts, and tested in classrooms.

      These resources were created for remote use during the pandemic and are not designed for classroom teaching.

      Lesson details

      Key learning points

      1. The solar system includes the Sun, eight planets, dwarf planets and bands of smaller rocks.
      2. The planets, dwarf planets and bands of smaller rocks all move the same way around the Sun as they orbit it.
      3. Most planets in the solar system are orbited by one or more moons.
      4. Each moon orbits a planet because of the gravitational attraction between it and the planet.
      5. Each planet in the solar system orbits the Sun because of the gravitational attraction between it and the Sun.

      Keywords

      • Solar system - the Sun and the collection of objects in orbit around it

      • Planet - a very large, spherical object in orbit around a star that has cleared the path of its orbit of other objects

      • Dwarf planet - a large object in orbit around a star that has not cleared the path of its orbit of other objects

      • Moon - a natural object in orbit around a planet

      Common misconception

      Gravity only acts close to the surface of a planet.

      Provide examples of motions caused by gravitational forces acting over huge distances of space, such as the orbits of planets.

      Rather than discovering gravity, Isaac Newton realised that gravity was universal and acted between all bodies that had a mass. The relationship he derived that connects the mass and separation of objects to the force of gravity between them is covered in A-level physics.
      Teacher tip

      Licence

      This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

      Lesson video

      Loading...

      Prior knowledge starter quiz

      Download quiz pdf

      6 Questions

      Q1.
      How many planets orbit the Sun?

      none
      one
      Correct answer: eight
      nine
      thirteen

      Q2.
      What is the Asteroid Belt?

      the name of the rings around Saturn
      a group of moons that orbit Jupiter
      Correct answer: a large number of rocks that orbit the Sun, between Mars and Jupiter
      a large number of rocks that orbit the Sun beyond Pluto

      Q3.
      Put these planets in order of their distance from the Sun, starting with the planet closest to it.

      1 - Mercury
      2 - Venus
      3 - Earth
      4 - Mars
      5 - Jupiter
      6 - Saturn
      7 - Uranus

      Q4.
      How long does it take Earth to orbit the Sun?

      one day
      28 days
      one month
      Correct answer: one year

      Q5.
      How long does it take the Moon to orbit Earth?

      about one day
      about one week
      Correct answer: about one month
      about one year

      Q6.
      How do the planets orbit the sun?

      by bouncing off stars
      in straight lines
      Correct answer: in oval-shaped paths called orbits
      by moving randomly through space

      Assessment exit quiz

      Download quiz pdf

      6 Questions

      Q1.
      Which of these are dwarf planets?

      Correct answer: Makemake
      Mars
      Mercury
      Neptune
      Correct answer: Pluto

      Q2.
      Which of these are regions in the Solar System that contain millions of rocks of all different sizes.

      Correct answer: the Asteroid Belt
      Correct answer: the Kuiper Belt
      Neptune's Belt
      Correct answer: the Oort Cloud
      the Pluto Cloud

      Q3.
      Which of these planets has a moon called 'the Moon'?

      no planets
      Correct answer: just Earth
      only Earth and Mars
      Jupiter, Saturn, Uranus and Neptune
      Earth, Mars, Jupiter, Saturn, Uranus and Neptune

      Q4.
      Why are moons that are bigger than the planet Mercury called moons rather than planets?

      they are not part of the Solar System
      they do not travel around the Sun
      Correct answer: they orbit a planet
      they orbit a star

      Q5.
      What best describes where gravitational force acts?

      near to the surface of a planet
      near to the surface of a planet with an atmosphere
      within the Solar System
      Correct answer: everywhere

      Q6.
      In which direction does the gravitational force of the Sun act on the planet Mars to make it orbit the Sun?

      in a straight line in the direction in which Mars is moving
      in a circle in the direction in which Mars is moving
      Correct answer: in a straight line towards the centre of the Sun
      in a straight line away from the centre of the Sun

      Lesson appears in