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

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Examine the effect of pressure on carbonation in soda.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

This science fair project investigates why the number of visible stars changes from place to place.

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

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

This science fair project idea examines liquids of different densities.

This science fair project idea compares biodiversity between drops of water.

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

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

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Plants and light seem to be good buddies, but how far does the friendship really go?

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.