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Construct batteries that make electricity from fruits with this fun science fair project.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This science fair project idea compares biodiversity between drops of water.

Find out whether matte or shiny nail polish lasts longer.

This science fair project investigates why the number of visible stars changes from place to place.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

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

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.

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

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

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

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

This science fair project idea explores whether talking to a plant will help it grow.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

This science fair project idea produces varying pitches of sound.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

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

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

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.