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Try this chemistry experiment with your curious kid and get some "shocking" results!

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

Slip some science into storm watching with a homemade rain gauge!

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

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

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

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

Instead of the traditional egg hunt, try this creative variation that will result in a beautiful Easter garden.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

In this experiment we will be determining whether birds prefer certain colors of seed.

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

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Help your child plant a "tea garden": a garden made of herbs for making teas.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

This science fair project investigates why the number of visible stars changes from place to place.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

Construct batteries that make electricity from fruits with this fun science fair project.

Check out this cool science fair project on identifying rocks and minerals for kids.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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!

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.