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Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

This science project teaches students to classify different shapes of leaves.

Teach your child about recycling and gardening as she re-uses an empty plastic milk gallon jug to craft a swan-shaped plant container!

Discover whether cold or hot water from the faucet will boil faster on the stove.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

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

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

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

Find out which type of sponge holds the most water.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

This science fair project idea explores substances that cause a bubble to last longer.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

This clay "painting" activity encourages and supports creative development and critical thinking skills.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!