It is made up of the Sun and its family of 8 planets.
What is the Solar System?
100
This is a small rock or particle of debris in our solar system that burns up as it passes through Earth's atmosphere. It is also often called a "shooting star" we can sometimes see in the night sky.
What is a meteor?
100
These objects produce and give off their own heat and light. They are essentially balls of gas.
What are stars?
100
This planet used to be the ninth planet in our Solar System and is now called a "dwarf planet."
What is Pluto?
100
This planet is most similar to our Earth and scientists believe it may be capable of supporting life. NASA has sent "rovers" into this planet in order to explore its landscape.
What is Mars?
200
These are chunks of rock and metal that orbit between the planets.
What are asteroids?
200
This is how long it takes Earth to circle the Sun. During this full rotation, we experience spring, summer, fall and winter on Earth.
What is 365 days?
200
This body travels around Earth. It is known as Earth's satellite.
What is the moon?
200
As far as we know, this planet is the only planet capable of sustaining human life.
What is Earth?
200
This planet is called the morning or evening star (even though it is not a star), because it appears in the sky just after sunset and before sunrise.
What is Venus?
300
These are loose collections of rock and frozen gases that orbit between the planets.
What are comets?
300
This constellation takes the shape of a large spoon and has a smaller "spoon" connected to its "handle."
What is the Big Dipper? (and the Little Dipper)
300
This is another name for the study of space.
What is astronomy?
300
This planet is fourth from the Sun and is second-smallest planet in the Solar System. It is often called the "Red Planet."
What is Mars?
300
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?
400
These bodies do not give off light of their own. They reflect the light of the sun.
What is a planet or a moon?
400
These are hollow pits or dips on the surface of the moon.
What are craters?
400
This is the galaxy that we live in. On clear nights, you might be able to see this galaxy as a dense streak of stars in the sky.
What is the Milky Way?
400
This planet is the eighth and farthest known planet from the Sun. Although it is large and dense, it can only be seen through a telescope. Little is known about this distant planet.
What is Neptune?
400
This planet is sixth from the Sun. It is best known for the system of rings that circle the planet.
What is Saturn?
500
This is the centre of the Solar System. The planets revolve around it.
What is the Sun?
500
The sun is a type of this gas sphere that gives off light and heat.
What is a star?
500
These are patterns of stars in the sky that, to some people, seem to be in the shapes of pictures.
What are constellations?
500
This planet is closest to the Sun.
What is Mercury?
500
Unlike other planets, this planet lies on its side. It is greenish in colour and has nine faint rings with five moons orbiting the planet.