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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

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

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Using a toy race car kids create a visual model of the Doppler Effect.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Here's a science activity to help your child investigate how seeds are designed to travel.

This science fair project idea demonstrates that plants give off water.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.