Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Start your toy engines -- this is going to be a fast and friction-filled race!

Using a toy race car kids create a visual model of the Doppler Effect.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Test your friends to find out if you can replicate the placebo effect's incredible results.