Wales Key Stage 3

Einstein showed that the speed of light is a universal constant. This means that it always travels at the same speed in a vacuum.

Did you know the Earth is travelling around the Sun at nearly 107,000 kilometres per hour?

Use our simulator to investigate the effect of gravity on other worlds. Then use your measurements and a bit of maths to calculate the strength of gravity in each location across the Solar System!

The Sun is a constant presence in our life on Earth. It gives us the heat and light we need to survive. But it is not a stable place. The Sun is a ball of hot plasma which is constantly changing.

Is gravity the same everywhere? Experiment with how the ball reacts in each of the Solar System locations by dropping or throwing the ball. How similar or different is each location to Earth?