I know that the sun gives out light.

I know that the moon looks different at different times.

I know that there are other planets in space.

I know that the earth is spinning and that this makes the sun look as though it changes position.

I know that the moon takes approximately 28 days to orbit the earth.

I know that the moon looks different shapes because of how we see the reflection of the sun (on the moon) from earth.

I know that the earth’s axis is tilted.

I can list some of the uses of artificial satellites.

I know that the force of gravity depends on the mass of something.

I know that force is measured in Newtons.

I know that weight is less on the moon because it has a smaller mass.

I can explain what a ‘day’ and a ‘year’ are in terms of the earth’s spin and orbit.

I know that earth is one of 9 planets orbiting the sun.

I know that gravity holds the planets and moon in their orbit.

I can explain why weight would be different on different planets by talking about gravity.

I can explain what effect distance has on gravity.

Level 7

I can explain how gravity helps to keep artificial satellites in orbit.

I can calculate ‘weight’ from information about the gravitational force.