This science fair project idea is develops new or improved paper making techniques and encourages recycling.

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

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

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

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.

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

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

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

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.

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.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

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

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

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.

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

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

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

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

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

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

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.

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

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

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

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

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

Boys might wrinkle their noses at the thought of gardening, but we guarantee they'll like this activity! Make a recycled terrarium full of bug-eating plants.

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.

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!