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

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

This will encourage your child to utilize their observation skills, develop aesthetic awareness, build artistic drawing abilities and learn about the seasons.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

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

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project idea investigates how the shape of an object affects drag.

Do different types of oil mix or stack? Find out in this science fair project idea!

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.