We have been investigating forces and how they influence speed. We made our own balloon powered cars and raced them to see how we could get them to go faster using a push force. We then tested them on different surfaces to see which surfaces created the most friction.
Our latest experiment tested the link between falling objects and gravity. We wanted to know how the height that we drop an object from, affects it's impact on the ground (without breaking anything) so we used ink splatters.