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In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

This basketball project explores the best way to make the perfect shot every time.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

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

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Make sourdough bread...and learn some colonial history and modern science in the process!

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Grow these wheatgrass and alfalfa friends and watch their hair spring up in just a couple days!

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

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

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

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

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.