By :Gilbert Fulton I hypothesize that the sand will have the most affect on the dropped ball Independent Variable: The type of surface the ball is being dropped on Dependent Variable: The height of the ball after being dropped on the surface The The The The The height the ball is dropped same ball same conditions when I experiment same amount of force same metric units used Potential energy Elastic Friction Air resistance Gravity 9 8 7 6 5 Series 1 4 Series 2 3 Series 3 2 1 0 Grass Sand Concrete The sand did have the most affect on the dropped ball ,so my hypothesis was correct. By: Gilbert Fulton I hypothesize that the soccer ball will have the most affect on the dropped ball. I hypothesize that the soccer ball will have the most affect. Independent variable: The type of ball. Dependent variable: Does the type affect the bounce of a dropped ball. The The The The The height the ball is being dropped at type of surface same conditions while testing same force being used metric units used Potential energy Elastic Air resistance Gravity Friction 16 14 12 10 Trial 1 8 Trial 2 6 Trial 3 4 2 0 Plastic Ball Tennis Ball Soccer Ball The soccer ball had the most affect and my hypothesis was correct. By: Gilbert Fulton I hypothesize that the football will have the most affect Independent variable: The sizes of the ball Dependent variable: The affect of the ball being dropped The type of surface The height the ball is being dropped at The same metric units used The same force applied Experimenting in the same conditions Elastic Gravity Air resistance Friction Potential energy 14 12 10 8 Trial 1 6 Trial 2 4 Trial 3 2 0 Football Tennis Ball Basketball The basketball had the most affect and my hypothesis was incorrect.