Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

How well can people recall what they have observed. Test your knowledge in this fun experiment.