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Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Determine which metal has the highest rate of conductivity.

Science fair project that uses distillation to convert salt water into fresh water.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

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

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

Learn how to make a paper snowflake with these simple instructions. Help your child learn how to make a paper snowflake with only paper and scissors.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

If your Father's Day festivities include meeting up with extended family, why not put all the dads to the test with a chili cook-off?

Can cells be frozen? This science fair project provides information to answer this question.

These handmade Christmas treat cups are perfect for house parties, school celebrations, and holiday bake sales.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

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

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

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

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

This science fair project idea measures physical dexterity as a function of temperature.

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.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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