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?

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

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

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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

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 science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

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

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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.

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

Science fair project that examines condensation and the conditions needed in order for dew to form.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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.

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

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Using a toy race car kids create a visual model of the Doppler Effect.

Start your toy engines -- this is going to be a fast and friction-filled race!

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.

Is it a square or a circle? See if you can trick your friends with this zany science project!