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.

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

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

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

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

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

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

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

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

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

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

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

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.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

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

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!

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

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

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

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.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

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

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!

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

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

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.