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.

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

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.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

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

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

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

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!

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

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!

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

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

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

In this science fair project, young children notice and track changes in trees throughout the year.

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

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.