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High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

Have your child kick off their summer vacation by making a miniature water slide!

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

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

This science fair project idea shows how a vibrating object transfers energy to whatever it touches.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

This experiment examines whether social orientation (extroversion or introversion) is correlated with memory.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

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!

Show your preschooler how to create a simple windsock using a colorful piece of tissue paper, a pipe cleaner, and yarn.

This activity is a great introduction to polymer chemistry. It might seem complicated, but all you'll need is the material found inside of a baby's diaper!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

The project researches how lubricants affect the mechanical advantage of a pulley.