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This experiment will explore whether adding different substances to a gel affects its strength.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

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.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This science fair project idea determines whether the diet and taste preferences of humans relate to their personality.

Test the combustion of different types of woods.

In this science fair project, students use the streak test to tell minerals apart from each other.

This project explores whether there is an effect on people, including heart rate and self-expressed mood, when they are exposed to different types of music.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

Develop a new system for predicting geographic changes. Demonstrate the nature of geographic change. Make logical predictions.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.

This science fair project idea provide quantitative data about how well the use of ASL ( American Sign Language) works in communicating with babies.

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

Is it a square or a circle? See if you can trick your friends with this zany science project!

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.