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Science Fair Project Idea
thumbnail Do you read the list of ingredients in foods and drinks before you buy them at the grocery store? If you do, you may have noticed that many of the items that are blue in color have the same dye, called FD&C blue 1. In this chemistry science fair project, you will build a simple colorimeter, a device that measures the concentration of colored chemicals in solutions. You will use the colorimeter to measure the concentration of blue dye #1 in sports drinks, and to track the rate at which the… Read more
Chem_p075
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Time Required Long (2-4 weeks)
Prerequisites Basic knowledge of chemistry. Some familiarity with electronics would be helpful, but is not required.
Material Availability Specialty item: Cuvettes can be purchased online. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Working with bleach is hazardous. Protect your skin and eyes.
Science Fair Project Idea
thumbnail We encounter an amazing array of colors every day, from the greens of plants and the many colors of their flowers, to the pinkish blue of a sunset, to the artificial coloring in beverages. How do we perceive all of these colors? When light hits an object, some of that light is absorbed by the object, and the light that is not absorbed is what we see. In this science project, you will build a simple spectrophotometer from a cell phone and use it to investigate how visible light is absorbed by… Read more
Chem_p100
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability You will need to special-order some items. See the Materials and Equipment list for details. A cell phone with a functional camera is required. A computer that can run Windows® software is required.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail Oooey gooey cheese...yum! Who doesn't like a slice of warm pizza straight from the oven? There's nothing quite like a slice of pizza and a glass of milk, so what makes pizza so great? The cheese! But did you know that making cheese is all about science and chemistry? In this science fair project, you will learn more about the science of cheese making and what kind of milk works best. Try this science fair project and you'll learn about science and get something yummy to eat afterward! Read more
FoodSci_p041
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Time Required Long (2-4 weeks)
Prerequisites Access to a stove and a microwave.
Material Availability Specialty items are required: rennet tablets, citric acid, and a dairy thermometer. See the Materials and Equipment list for more information.
Cost Average ($50 - $100)
Safety Always exercise caution when working with a stove and hot liquids. Adult supervision is required.
Science Fair Project Idea
thumbnail What do pizza, milk shakes, and ice cream sundaes have in common, besides being delicious and loaded with calories? You might be surprised to learn that these foods, because they contain dairy products, cannot be eaten by the majority of people around the world. Dairy products contain the sugar molecule lactose, and the majority of people on the planet slowly begin to lose the ability to digest lactose after the age of 2. In this human biology and health science fair project, you will… Read more
BioChem_p031
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Time Required Average (6-10 days)
Prerequisites None
Material Availability If lactase drops are not available in your local drug store or grocery store you will need to order them online. See the Materials & Equipment section for more details.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
Has a milk-based soup, sauce, or gravy ever curdled on you (formed lumps) as you were preparing it? Curdling is the process of coagulation that occurs where the proteins in the milk clump together. Sometimes curdling is desirable—for example, if you want to make a delicious cheese or yogurt—but if you are trying to make a milk-based soup or gratin, or if you're adding milk to a hot drink, curdling is very unwanted because you lose the smooth, creamy texture. Nobody likes clumps and… Read more
FoodSci_p029
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision is recommended when using the stove.
Science Fair Project Idea
A delicious and quick lunch is a cup of tomato soup and a grilled cheese sandwich. Biting into the toasty, butter-soaked bread and gooey cheese is very comforting. But what makes the cheese melt so nicely? Do all cheeses melt this way? In this cooking and food science fair project, you will experiment with making and determining the best recipe for processed cheese. Read more
FoodSci_p054
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Time Required Long (2-4 weeks)
Prerequisites You will need access to a refrigerator, a stovetop, and an oven.
Material Availability Specialty items are required. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Minor injury is possible. Adult supervision is required. Since the sodium phosphate dibasic is not a food-grade substance, do not eat any of the resulting processed cheeses.
Science Fair Project Idea
thumbnail How does your family thaw and cook meat? Have you ever wondered if it is the safest way? In this practical science project, you can find out and shed light on safe practices in the kitchen by investigating how many viable bacteria are present in samples of meat that have been thawed or cooked using different methods. Read more
MicroBio_p015
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Time Required Average (6-10 days)
Prerequisites To do this project, you will need access to a laboratory with facilities for culturing bacteria. You should be familiar with sterile technique and proper handling of bacterial cultures.
Material Availability Specialty items
Cost High ($100 - $150)
Safety Standard precautions for handling bacterial cultures and bleach.
Science Fair Project Idea
thumbnail Do you enjoy eating smoothies packed full of berries and other tasty fruits? Or maybe you like drinking a creamy milkshake with peanut butter, chocolate, and bananas. Often, smoothies and milkshakes are tasty to us because of the sugar in them. But did you know there are different kinds of sugar? Some ingredients in a smoothie can have more than one kind of sugar in them, and our bodies process each kind of sugar differently. In this science project, you will measure the concentration of… Read more
FoodSci_p073
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Time Required Average (6-10 days)
Prerequisites None
Material Availability The invertase and lactase for this science project need to be specially ordered. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
thumbnail "Plastic made from milk" —that certainly sounds like something made-up. If you agree, you may be surprised to learn that in the early 20th century, milk was used to make many different plastic ornaments —including jewelry for Queen Mary of England! In this chemistry science project, you can figure out the best recipe to make your own milk plastic (usually called casein plastic) and use it to make beads, ornaments, or other items. Read more
Chem_p101
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety This science project uses hot liquids. Adult supervision and/or help is needed.
Science Fair Project Idea
thumbnail Light interacts with matter in a variety of ways—it can be absorbed, reflected, refracted (bent), and scattered. The scattering of light explains why the sky is blue, why milk is white, and why the Mississippi River is called "The Big Muddy." In this biochemistry science fair project, you will make an electronic device to measure the amount of scattered light in milk. You will also use the device to track the activity of protease (a type of enzyme) in pineapple juice, based on its ability… Read more
BioChem_p032
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Time Required Long (2-4 weeks)
Prerequisites A familiarity with basic chemistry is required. Experience with simple electronics would be helpful, but is not absolutely required. Although the procedure provides step-by-step instructions, this is a DIY (do-it-yourself) science fair project that may call for some creative problem solving on your part.
Material Availability Electronic components are required. See the Materials & Equipment list for details.
Cost Average ($50 - $100)
Safety Use caution when working with laser pointers. Wear safety goggles when using the drill.
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