This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

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.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

Create a bee garden to help shelter bees in your area.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

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.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

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

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

This science fair project idea examines the reason boats are shaped and engineered.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

This science fair project idea identifies trees using a dichotomous key.

Challenge your learner to design and build a city of their own in this creative engineering activity.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair project examines how seeds hitchhike on animals and clothing.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.