In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Do you think heat can affect a plant's growth rate?

Practice measurement using centimeters in this fun math race designed for your second grade student!

This do-it-anywhere guessing game helps reinforce number concepts. And it's a blast to play.

How many steps long is the hallway? Kids put their graph-making skills to work as they make a step map of their own house.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.