Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

This social science experiment assesses whether the timing of peak mental performance shifts from afternoon to morning as we age.

Explore the negative and positive consequences of stereotypes.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.

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.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

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

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

This experiment investigate whether children in different age groups learn better from a computer program or a human teacher.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

In this science fair project, students examine how temperature affects sugar transport within a plant.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

In this project students experiment with making music using only glasses of water.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

In this experiment a spectrometer is used to analyze the light emitted by burning ion solutions.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

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

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.