This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Find out whether a longer airplane will fly farther or a wider paper airplane.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Determine if gender affects the ability to identify different smells.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

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

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

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

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

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

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

This science fair project idea demonstrates that plants give off water.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

How powerful is the reaction between baking soda and vinegar? Find out here!

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 fair project teaches students about wilting and browning of salad greens.

This science fair project idea explores whether white light can be separated into different colors.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!