It is made up of the Sun and its family of nine planets.
What is the solar system?
100
This is the centre of the solar system. The planets revolve around it.
What is the Sun?
100
This planet is called the morning or evening star because it appears in the sky just after sunset and before before sunrise.
What is Venus?
100
These are patterns of stars in the sky that, to some people, seem to be in the shapes of pictures.
What are constellations?
200
These are chunks of rock and metal that orbit between planets.
What are asteroids?
200
This is the galaxy that we live in.
What is the milky way?
200
This planet is fifth from the Sun. It is the largest planet and is best known for its beautiful colours and its great red spot.
What is Jupiter?
200
These have a bright head and long, shining tail. They shine partly because of light absorbed and re-radiated from the Sun and partly because of reflected sunlight.
What are comets?
300
These are loose collections of rocks and frozen gases that orbit the planets.
What are comets?
300
This planet is closest to the sun.
What is Mercury?
300
This planet is sixth from the sun. It is best known for the beautiful set of rings set of rings that circle the planet.
What is Saturn?
300
This is how long it takes for the moon to circle the earth.
What is 24 hours?
400
This is a body that does not give off light of its own. It reflects the light of the sun.
What is a planet?
400
This planet is the smallest in our solar system.
What is Pluto?
400
This planet is seventh from the sun. Unlike other planets, this planet lies on its side. It is greenish in coulour and has nine faint rings with five moons orbiting the planet.
What is Uranus?
400
This is how long it takes the Earth to circle the Sun.
What is 365 days?
500
These objects produce and give off their own heat and light.
What are stars?
500
This body travels around the Earth. It is known as Earth's satellite.
What is the moon?
500
This planet is eighth from the sun. It can only be seen through a telescope. Little is known about this distant planet.