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How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

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

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

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!

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Learn about Ikebana, or the Japanese art of flower arranging, with your child while artfully arranging spring flowers!

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

This science fair project idea produces sounds by creating vibrations using different objects.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Analytical chemists perform chromatography to separate colors into pigments. Test the food coloring used in M&M's and Skittles candy in this fun project!

Kids make an electromagnet in this electromagnetic induction experiment to learn about induction, current, and the right-hand rule.

This science fair project idea produces varying pitches of sound.

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

Science fair project that determines how we can change potential energy into kinetic energy.

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Here's a simple craft activity that can help your youngster better visualize the life cycle of a frog as a circle.

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.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.