This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

This project researches whether the type of land use affects the water quality of Queenstown Creek.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!

This science project helps students gain understanding of bioluminescence, the phenomenon that allows fireflies and glow worms to give off light.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

This experiment will explore the possibility of creating an infinite object by hand.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

In this cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.

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

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This experiment determines the distribution of darts around a bulls eye to simulate the probability of an electron's location in its own cloud of electrons.

High school students learn about resistance, resistivity, and if copper is the best metal conductor in this great physics science fair project idea.

Compare ability of selected materials to block UV-A radiation. Shine black light though glass at detecting beads underneath. Note color intensity.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

The goal of this science fair project is to demonstrate the effects of oxidation by writing a message in invisible ink made from lemon juice.

Science far project which determines whether the material of a baseball bat affects the distance that the baseball will travel.

This science fair project idea investigates if webbed feet help a duck (and others) swim.