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This experiment evaluates if people have an accurate perception of how much personal time they spend interacting with technology.

This experiment will test whether people are better auditory or visual learners and if there is a link between gender and either of these learning types.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Will male or female hair grow faster? Find out in this science fair project idea!

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

This science fair project idea demonstrates the process of land erosion.

Air resistance is a crucial factor when designing a parachute. In this science fair project, students find what type of material works best as a parachute.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

Study and categorize the functions and types of genes. Run gene experiments chosen from links. Analyze data, explain ideas in a detailed report.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

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.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

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

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.