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

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.

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

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.

Help your child learn about animal classification with this fun and delicious activity.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

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

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

This science fair project idea experiments with spinning color wheels and optical illusions.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

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!

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

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.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

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

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

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.

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.