The toy car had the least friction because it had wheels. ....Maeve

If you put bleach on the car's tires it would make them sticky and they would go slower. ...Brooke Taylor

If you put soap and water on the board then things would move faster and there would be less friction. Or you could put butter on it. ...Brooke Ann

The most friction was the eraser and the least friction was the toy car. To make the car go faster you could lubricate the board or sandpaper it smoother. ...Chris

We raised the board 33 cm to move the eraser. We raised it 10 cm to move the stone. We raised it only 1 cm to move the car. ....Nolan

The eraser had the most friction with the board. I would try to reduce friction by putting Ice on the board or maybe oil and grease and then do the experiment again. ...Lauren

The things that slide most easily were smooth or had wheels. I would reduce friction by putting ice on the board or laminating it to make the board smoother. ...Malana

I think oil, grease, and butter would make the board have less friction so I would retry the experiment with these items. ...Duane

The toy car had the least friction with the board. The eraser demonstrated the most friction. ...Yumi

The eraser had the most friction with the board. The toy car had the least friction. The toy car slid when there was hardly any incline at all. It had wheels to make it move faster. ...Todd

If you put wax on the board to make it more smooth the things would have less friction with the board and slide better. ...Zach

We had to raise the ramp 30 mm to move the eraser. We raised it only 3 mm to get the car to roll down the ramp. ...Alexis

The things that slid more easily were smoother or they had wheels. The things that didn't slide well weren't as slippery on the bottom. ...Taylor

In our group the button had the most friction and the stone had the least friction. ...Nathan

The button demonstrated the most friction and the car had the least friction with the board. ...Logan

Sometimes we want less friction like for a race car tire or for ice skating or for sledding done a hill. ...Ashley

This page was created December 16, 2003