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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 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.

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.

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

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!

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

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 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.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

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!

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

Make edible amber fossils with your second grader to explore the fascinating world of science!

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!