Gravity Simulator
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?
Solstick: Example Result
We can estimate the size of the Earth by seeing how far away you are from somewhere nearer the equator where the Sun was directly overhead at the time the measurement was made. You can see how this works in detail here.
For the Solstick experiment, we collected lots of shadow stick measurements from people all over the UK.