Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science fair project teaches students about wilting and browning of salad greens.

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 organic materials become soil? This science experiment measures what materials biodegrade.

Engineers in training can get started with this simple wheel-and-axle construction activity.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

In this fun experiment, we'll find out how color affects heat absorption!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

This simple experiment serves as an introduction to the greenhouse effect.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

Will the shape of an ice cube impact how fast the ice melts?

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.