What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

In this cool science experiment, test and compare the adhesive holding strength of homemade casein glue versus commercial glue.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

Experiment with fermenting various fruits, grains or syrups. Describe and illustrate the fermentation process in a detailed report.

This project researches whether the type of land use affects the water quality of Queenstown Creek.

Check out this cool middle school science fair project idea to find the difference between organically grown and commercial brands of foods.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

A mixture of botany, exploration, Abstract Art and Pop Art color theoryâthis activity never gets dull! Start by exploring outdoors and finish with indoor art.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

This science fair project idea explores whether a person's ability to see under very dim lighting conditions diminishes with age.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

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

What do you get when you combine science and fairies? Fairy scientists who make their own potion, of course! This activity promotes critical thinking skills as your child mixes, experiments, and creates their very own fairy potions.