Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

This science fair project examines how seeds hitchhike on animals and clothing.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

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

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Teach your child to dye eggs with natural ingredients from the grocery store. From pink to gold, these eggs are perfect for hiding, hunting or simply munching.

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

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

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

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

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

In this activity your child will create their very own marble maze!

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.