You now need to plan some experiments to test your prediction.

• What am I going to change?
  

• What am I going to measure?
  

• What am I going to keep the same?
  

( the ball and the bouncing surface)

You will now be thinking about the experiments you are going to perform and the equipment you will need.

The experiment must be safe.

Don't make it too complicated, you may have to repeat it.