Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

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

This surprisingly good glue recipe comes from common kitchen items.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

This science fair project idea explores whether talking to a plant will help it grow.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!