Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

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

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

Help your kindergarten science maven explore the water cycle without getting everything wet.

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

Create a self-portrait from natural materials in this collage craft activity!

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

Combine science with reading and art to help your first grader create an attractive holiday gift for a beloved friend or relative.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.