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

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

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.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Determine if gender affects the ability to identify different smells.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

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!

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

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

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

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

This biodiversity project examines the biodiversity in your own backyard.

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

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

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.

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

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

This science fair project idea explores the egg's thin membrane.

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.