Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea produces sounds by creating vibrations using different objects.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

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.