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High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Here's an arts and crafts activity for preschoolers and pre-kindergarteners: build brick buildings with homemade mud bricks made from dirt and water.

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

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.

This science fair project idea explores the egg's thin membrane.

Teach your child about recycling and gardening as she re-uses an empty plastic milk gallon jug to craft a swan-shaped plant container!

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Make "fossils" with your child to hide in the sandbox or at the park or the beach, to help your child explore his archaeological side.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

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

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

This science fair project examines the different composition of fungi and plants.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Science fair project which examines the chemical reaction of a candle flame with various gases in order to determine the identity of the gas.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.