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?

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

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

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

This science fair project idea produces sounds by creating vibrations using different objects.

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

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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.

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

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Cleaning can be a chore, but not with this sudsy experiment!

Take a dive into the candy jar with this yummy science experiment.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

This science fair project idea determines which method of hand cleansing is the most effective.