This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science experiment tests if dog saliva can really help heal wounds.

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This science fair project idea provides evidence that air is everywhere and takes up space.

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

In this project children practice the scientific method while playing with puffy paint.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Discover which fabrics shrink the most in the wash and why.

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

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

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

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

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

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

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

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

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

This science fair project idea explores how length affects the weight a bridge can hold.

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