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What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Discover whether the color of text correlates with ease and speed of reading.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

What happens when colored beams of light mix? You might be surprised.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Give your science savvy kindergarten a lesson in plant science with this fun carnation experiment.

Your child can use Styrofoam, green paint and toothpicks to create her own cactus plant sculpture.

This tactile activity helps kindergarteners learn about texture.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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

Here's a great early reading and science activity for curious children. Learn how to plant your child's name in seeds for a growing writing activity!

This experiment uses personality assessments to evaluate the prevalence of specific character traits in left-handed and right-handed people

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This experiment investigates whether paper color influences people's ability to remember the information that they read.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.