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Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

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

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

In this science fair project, students investigate how different colors influence appetite.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

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

Your child can create his own texture tree, experimenting with design during the process. The result will be a beautiful addition to your holiday decorations

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

This experiment evaluates if the temperature of the environment that you work in affects your ability to perform mental tasks.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

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

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

In this middle school activity, your child will learn how to press plants and create her very own herbarium, or plant library! Here's how:

Study the effect of music on blood pressure. Compare blood pressure readings before and after the listening session. Analyze results, write a detailed report.

Describe the lives of commercially raised chickens. Contact local chicken farmers for information and advice. Write a detailed report about farming techniques.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Show your teen how to make her own beeswax lip balm. It's one of the simplest do-it-yourself activities, and it's fun to make!

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.