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Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Engineers in training can get started with this simple wheel-and-axle construction activity.

This science research project challenges students to think of more effective lobster farming methods.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

This project examines whether people's taste perception is influenced by what they see.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

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

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

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 compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

What happens when colored beams of light mix? You might be surprised.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This tactile activity helps kindergarteners learn about texture.

Here's a great early reading and science activity for curious children. Learn how to plant your child's name in seeds for a growing writing activity!

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

The objective of this science project is to determine the length of time for different seeds to germinate.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

What's a crater, and how does it happen? Here's a kindergarten experiment with safe, nontoxic ingredients.