Science term 4

We put the slide that Mr bach give us on a iron bar we teats it and it gone wrong because it was to low. So we made it a bit high and it went 7 foot Mr bach help us to so how long it is we got and it was 8 foot. it was very interesting the problem is the mat is here hard and the ball stop all the time. it was interesting because the big ball went down for a long time and the small ball did not go that far. the high was 2 foot and it work very good at the end of the day we all had fun.