In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

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 investigates the hardness property of minerals.

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!

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

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.