Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Planning a beach vacation? Here's a cool nature craft you can make in the sand with your child.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Help your child build her very own science laboratory at home for experiments and science projects. This is a quick, easy, and fun educational tool!

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

People have favorite flavors, but what about ants? Which ant food is the most popular?

This science fair project teaches students about wilting and browning of salad greens.