Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

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

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

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.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.