Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

This science fair project idea explores whether white light can be separated into different colors.

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.