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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.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

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

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project idea identifies trees using a dichotomous key.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

This project investigates the affect of storage temperature on microwave popcorn.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

The purpose of this science fair project is to build a basic radio.

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

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.