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Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Crystal Fudge

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

What Is the Bacterial Content of Milk?

This science fair project idea discovers the effect of (high) heat on animal cells.

To Sear to Not to Sear

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Does Carbon Dioxide Raise the Temperature of the Atmosphere?

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

Supercooled Water

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.

Balloons! Some Float! Some Sink! How does the Temperature of a Gas Affect its Density?

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

Effect of Soaking Potatoes on the Frying Process

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

Effects of Extreme Temperature on Battery Life

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.

Onions and Lachrymal Glands  

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

What Method of Preparing Salad Eliminates the Most Bacteria?

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Good and Bad Lipids

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Which Starch Plant Produces the Most Fuel? 

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Ocean Currents

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

Growing Algae

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

Build Your Own Photobioreactor

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

What is the Best Way to Disinfect a Toothbrush?

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

Can You Cook Using Only Sunlight?

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

Catch a whiff of it?

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

Reptile Activity Level

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Canned vs Frozen Vegetables

Look out! Measurement is all around us! In this lesson, students will learn about measuring tools and how to use them. Students will work cooperatively on a fun measurement hunt, exploring and applying concepts of measurement using inches.

Inches, All Around!

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

The Effect of Ambient Temperature on the Ability to Rock and Roll

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.

Unpuckering the Persimmon

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Too Cold to Chirp?

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

Space Shuttle Ceramics

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Don't Have a Meltdown!

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.

Rotting Fruit! Which Fruits Rot the Fastest, the Slowest? How do We Explain the Differences?

This science fair project idea determines if the temperature of rubber effects how high it bounces.

The Effects of Temperature on Bounce

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Cool It!

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

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