Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

In this project children practice the scientific method while playing with puffy paint.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!