Discover which fabrics shrink the most in the wash and why.

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.

This experiment will investigate whether reward or punishment is more apt to motivate people.

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

The objective of this science fair project is the compare the rate and efficiency of disaccharide and polysaccharide fermentation by yeast.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

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!

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

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

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 project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

Place mushroom caps on poster board, label samples. Check beneath mushroom caps for "prints" of spores. Record and interpret prints left behind.

Science fair project that designs a video game that requires players to use relevant skills.

Determine which metal has the highest rate of conductivity.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Construct batteries that make electricity from fruits with this fun science fair project.

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 windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.