Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Making your own glass cleaner is easy, effective and inexpensive!

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

This project examines whether and what associations exist between numbers and letters and colors.

Learn about the factors that influence group conformity.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

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.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

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

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

The objective of this experiment is to conduct a ganzfeld experiment and determine if extrasensory perception (ESP) can be observed.

Help your child make a beautiful homemade sandcastle that will last!

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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.

By dropping a magnet through a copper tube, kids observe the cool (and bizarre) braking effect produced by the eddy currents predicted by Lenz's law.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

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.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!