This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Start your toy engines -- this is going to be a fast and friction-filled race!

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Is it a square or a circle? See if you can trick your friends with this zany science project!

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

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

Science fair project that determines whether mass and weight are the same or different.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

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

In this science fair project, students create their own miniature salt flats at home.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

If your mom likes flowers, make her a sweet gift that she'll treasure with this fun craft, a pretty Pressed Flowers Card!

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

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

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.