Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

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!

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This Where the Wild Things Are costume will make your little wild thing look just like Max. This Where the Wild Things Are costume is surprisingly easy to make.

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

Lots of kids wonder what it would be like to be a police officer. Celebrate the people who help keep our communities safe with this fun craft.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

Test the idea that people who wear glasses tend to be more educated. True or false?

This project determines what percentage of test subjects react adversely to the sound of fingernails on a chalkboard and explores their physiological responses.

Science fair project that examines the relationship between the size of a bubble and how quickly it falls. What is the correlation?

Learn how milk freezes into ice cream. Does the fat content affect how quickly the milk freezes? What is salt's role in the freezing process?

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.

How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Who are the people young readers meet in their books? This reading activity will help your first grader build important comprehension skills.

Why not change things up a bit with this fun way of making those loop-hole bunny ears that sit at the top of his sneakers.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.