When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Try this fun and simple activity to help nurture your child's observation skills and nourish a growing love of science!

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

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

This science fair project idea explores how length affects the weight a bridge can hold.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Inspire your child to learn about an amazing animal as she creates her very own polar bear habitat.

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

In this project children practice the scientific method while playing with puffy paint.

Help your child celebrate the summer and the sun by making a sandy seascape.

This project examines whether people's taste perception is influenced by what they see.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.