Science investigation

Today in science, we were split into our Lions and Elephants groups. Our task was to predict patterns in our results from graph that shows different types of balls and how high they bounced when they were dropped from 1m. The type of balls we had were the following: A bouncy ball, tennis ball, a tiny silver bauble, a glitter bauble, a large bauble made from cloth, a small bauble made from cloth and a medium sized purple bauble. We all agree that the colour of the balls wouldn't make a difference.
Both groups predicted that the heavier balls (tennis ball and bouncy ball) would bounce back the highest because they were designed to bounce. Not only that, but they would come down to the surface at a greater speed meaning that the impact would be greater.
The baubles we not only the lightest, having the least impact on the surface but they are also decorative items that were not made for the purpose of our experiment.

Here are the balls we tested:

The pattern we discovered in our results matched our prediction, the heavier balls that were designed to bounce did indeed bounce higher. However the lighter balls (all baubles) had a wider range of results, all lower than the heavier balls but some of our results shocked us because they bounced higher than we expected.

Here are our results displayed from each group in a bar graph.