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What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Help your own young scientist tackle the wonders of static electricity from the comfort of his own home!

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Here is a quick experiment you can conduct at the playground to introduce or reinforce the concept of Newton's First Law, The Law of Inertia.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

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!

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

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

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

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

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

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

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!