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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.

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.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

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!

In this project students experiment with making music using only glasses of water.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Your kindergartener will make prints of his favorite fruits and vegetables and learn how to organize and assemble his very own book.

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

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

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

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

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.

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

Help your first grader design and create his very own bird feeder out of an empty milk carton.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

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

Explore if planting seeds in a certain direction will affect how fast it germinates.

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

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

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

Your child can use Styrofoam, green paint and toothpicks to create her own cactus plant sculpture.