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

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

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

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

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

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project idea investigates whether plants can survive being frozen.

This science fair project idea determines if the color of light affects the growth of plants.

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.

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

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

Demonstrate how to tell the age of an egg without having to crack it open.

This science fair project idea determines the most effective method of preserving food.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project idea examines liquids of different densities.

This science fair project idea produces varying pitches of sound.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.