Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

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

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

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!

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

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

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

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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

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!

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

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

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?