bouncing the ball on the cement first then change to bouncing the ball on the carpet to see which floor the ball bounces the highest is my independent Variable the carpet? Is the dependent Variable the lower bounce on the carpet. Is the controlled variable the quality of the carpet
How high your ball bounces is dependent on which surface you bounce it on. The height that you drop it from is the controlled variable as well as using the same ball.
Your independent variable is the thing that changes, which is the surface the ball is bounced on (like cement or carpet, but not just one of those) Your dependent variable is the variable that is effected by the independent variable, so the height that the ball bounces. Your controlled variable is the thing that does not change, the constant, so that would be your ball. Tips: for a good experiment, you should have more than 2 things in the the independent variable, so you should try other surfaces as well such as wood. Also, to avoid any error, buy multiple of the same ball and use each one on a different surface. That way the cement won't scratch the ball and cause friction between the ball and the carpet, but the balls will have the same bounce so it won't change the height.
