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.

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

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.

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

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.

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!

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.

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

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.

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

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

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.