This project compares the strength of one, two, and three-ply toilet paper.

Word color association is just a fancy way to talk about the way we connect colors with words.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

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 science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This science fair project idea deals with the qualities of shade on a sunny day.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

In this project, waves of vibrations are experimented with using water in glasses.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

This science fair project idea determines if family members can recognize one another using only the sense of smell.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

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!

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.