In this fun science experiment kids create paper race cars out of index cards. The goal is to design a car that will go the farthest when powered by a marble that travels down a ramp and pushes the car across a flat surface.
Try this fun science experiment again with a different car. Fold another index card in half and try to design a car that will travel further than your first model. Try using various sizes of index cards to see if the size of the card makes a different in the distance your cars travel.
The reason that your car stopped was because of friction. Friction is caused when two things rub against each other. The bottom of your car is in contact with the hard surface that you used for a race track.
If you were to use a rough surface for your race trace it would create more friction with the bottom of the car causing it to go slower and not travel as far.
Gravity Experiments, Perfect Landing Astronauts in the early days of space exploration returned to Earth using parachutes to slow their descent. In this experiment you create a variety of parachutes and test them.
Water Cycle Experiments, Floaters and Sinkers Try these amazing science experiments and find out how insects can walk on water!
Magnetism Experiments, Navigating the Oceans Do you know how to create a compass using only a needle and magnet? Try this easy experiment and find out!
Physical Science Experiments, Swinging With Galileo Try these fun physical science experiments first done by Galileo. See if you can make things swing on a string by pushing one object to set all the hanging strings in motion.
Easy Science Experiments Lots of easy experiments for kids of all ages. Try a fun science experiment from this page.
Kids Fun Science Find out about science activities, experiments, plate tectonics and much more on this page.
Fun Science Experiment, Marble Powered Race Cars Create a ramp, a paper car and see how far you can make the car travel powered only by a marble!