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The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

In this kindergarten activity your child will create a map of your house and use a magnet to move pictures of your family through the house!

Your preschooler will engage their senses by making a scented pumpkin to decorate your house.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.

Free science fair project idea that examines the ergonomics of your environment. Redesign your living space to be better suited to your lifestyle.

Help your young scientist celebrate the wonders of the night sky in the comfort of your own home.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

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

In this fun activity, your child will create their very own solar oven to bake s'mores!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

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

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

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

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

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

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Science fair project that determines how your mirror image differs from your actual image and how virtual images are constructed.

Enlisting the cooperation of your teenager to help prepare your household for an emergency is the perfect way to get set, fast.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

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

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Will people perceive your intelligence differently depending on your hair color? Find out in this science fair project idea!