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What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

Construct and experiment with a periscope using reflected light rays to gather an image.

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

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

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

This science fair project idea explores whether talking to a plant will help it grow.

This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.

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

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

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

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

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

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.