How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Test the effects of left and right handedness on writing speed and penmanship. Volunteers hand-copy the same paragraph of text, which samples look neater?

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

How powerful is the reaction between baking soda and vinegar? Find out here!

Research history of programming language. Design a new or improved programming language. Create a display that illustrates the features and improvements.

Test ability to distinguish between natural and artificial aromatherapy oils. Select fragrance, natural and synthetic sample. Volunteers state preference.

Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

Study the effect of music on blood pressure. Compare blood pressure readings before and after the listening session. Analyze results, write a detailed report.

In this science fair experiment about recycling, demonstrate how the wax from a candle can be reused to make another candle.

This science fair project idea attempts to prevent another tragedy in Gonaives and encourages technological advances against flooding.

Follow in the footsteps of movie character legends as you walk your little one through the steps of becoming a junior archaeologist.

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 science fair project idea outlines the practical applications of particular origami folding techniques.

Devise an argument for or against the possibility of resurrectin extinct species through DNA manipulation. Analyze data, report findings.

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

Here's a guide to starting a community clean-up project from scratch.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

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!

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.

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.

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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.