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.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

This science fair project idea identifies trees using a dichotomous key.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

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!

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Challenge your learner to design and build a city of their own in this creative engineering activity.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Discover how and which salt melts ice the quickest.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

This science fair project idea determines if the color of light affects the growth of plants.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!