This science fair project idea identifies clouds as a means of predicting the weather.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

In this experiment, the weight of aluminum cans will be compared.

This science fair project idea determines which method of hand cleansing is the most effective.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

In this science fair project, students create their own miniature salt flats at home.

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

The project is to investigate yeast fermentation and its results on hand of latex balloons.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

Science fair project that examines condensation and the conditions needed in order for dew to form.

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

This science fair project idea explores the different properties of matter.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.