Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

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!

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

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

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Is it a square or a circle? See if you can trick your friends with this zany science project!

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

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

Use pepper and soap to discover some fun facts about the properties of water.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Plants and light seem to be good buddies, but how far does the friendship really go?

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

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

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.