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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.
Science Fair Project Idea
thumbnail A nice hot cup of tea sure can wake and warm you up in the morning. In this science fair project, you will investigate the chemistry of tea. The longer you steep a tea bag in hot water, the stronger the tea will be. But how does the strength of the tea change with longer brewing time? In this food science project, you will make a very simple electronic device to measure the strength of tea. The device will determine how strong the tea is by measuring the amount of light the tea absorbs. Read more
FoodSci_p058
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety Adult supervision is required when boiling water.
Science Fair Project Idea
thumbnail Have you ever noticed that the salt you are using says it is "iodized"? Iodine is an important micronutrient, which means we need it in small quantities to be healthy. Because iodine is rare in many people's normal diets, it is added to table salt. Then when people salt their food, they are also adding this important micronutrient. In this food science project, you will use some kitchen-friendly chemistry to investigate which types of salt have iodine added (in the form of iodide) and which do… Read more
FoodSci_p011
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
The rates of some chemical reactions can actually be increased by adding light. Light sometimes interacts with one or more of the chemicals and provides an "energy boost" that dramatically speeds up a normally slow reaction. In this photochemistry science project, you will experiment with the effect of light on a chemical reaction. The reaction converts iodine, which forms a dark-orange solution, to iodide, which is colorless! Read more
Chem_p095
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Time Required Average (6-10 days)
Prerequisites An introductory chemistry class.
Material Availability You will need basic lab equipment, which can be ordered online. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Gloves and safety goggles are required. Oxalic acid is toxic and an irritant. Avoid breathing oxalic acid dust and avoid contact with skin. Ammonia is an irritant. Iodine is also an irritant and stains clothes and skin. Adult supervision is required.
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 Did you know that your body needs a certain amount of iron in order to stay healthy? Iron is an essential part of the hemoglobin complex in your blood, which carries oxygen from your lungs to the rest of your body. It is also involved in many other biochemical processes in your body. Iron can be found in much of what you consume each day. In this chemistry science fair project, you will use a simple test kit that produces an orange-colored chemical in the presence of iron in a solution. The kit… Read more
Chem_p089
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Time Required Average (6-10 days)
Prerequisites You should be enrolled in or already have taken an introductory chemistry class.
Material Availability You can order an iron test kit online. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety The chemicals in the test kit could cause irritation if not handled properly. Be sure to wear safety goggles and gloves when working with chemicals. Adult supervision is recommended.
Science Fair Project Idea
thumbnail Is it possible to manipulate bacteria to become protein production factories? Can diabetics control blood glucose with insulin produced by bacteria? How cool would it be to take advantage of these microorganism's sophisticated makeup, short doubling times and cheap growth media to mass produce medically and commercially useful proteins? All of these are possible with a few simple genetic manipulations. By the end of this project you would know the basic foundation on which many… Read more
BioChem_p013
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Time Required Average (6-10 days)
Prerequisites Some laboratory experience required: knowledge of sterile technique, working with bacterial cultures, and using automatic pipets all helpful.
Material Availability Specialty items
Cost Average ($50 - $100)
Safety Requires adult supervision in a laboratory facility. For ISEF-affiliated fairs, this project will require [# ProjectGuide Name="Advanced.ScientificReviewCommitteeSRC" Value="HtmlAnchor" HtmlText="SRC" #] approval.
Science Fair Project Idea
thumbnail Cake, cookies, pie, ice cream, hot chocolate, lemonade... Yum! What do all these delicious treats have in common? Sugar. In addition to providing sweetness, sugar adds bulk, flavor, and structure to foods. But is it necessary to add sugar to achieve sweetness? Can the same sweetness be achieved using sugar substitutes like artificial or natural sweeteners? In this project, you will test sugar and sugar substitutes and compare the sweetness of each in relation to sugar. In the end, your day will… Read more
FoodSci_p016
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Some specialty items needed,see Materials List for details.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
Many people routinely use fertilizer for crops, gardens, and lawns. What people don't know is that each time they apply fertilizer, the fertilizer seeps through the soil into the water table. This can eventually lead to the contamination of a local water source, like a stream, pond, lake, bay, or ocean. This is an especially big problem for agricultural practices that frequently use large amounts of fertilizer on fields that are connected by irrigation channels. The run-off of fertilizer… Read more
EnvSci_p025
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Time Required Average (6-10 days)
Science Fair Project Idea
thumbnail Solar cells are popping up on rooftops everywhere these days and are a model for clean, renewable energy. Did you ever look at those solar panels and wonder how we can get electricity produced by solar cells when the sun is not shining? It is a great question because solar panels do not produce electricity when it is dark outside. One strategy to overcome this challenge is to store the energy produced by solar cells during the day in the form of a fuel that can be used at a later time. In… Read more
Chem_p099
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Time Required Average (6-10 days)
Prerequisites Completion of a basic chemistry class is recommended before trying this science project. You should also know something about circuits, or use the [# ProjectGuide Name="Advanced.ElectronicsPrimerIntroduction" Value="HtmlAnchor" HtmlText="Science Buddies Electronics Primer" #].
Material Availability A number of specialty items are required. For your convenience, a Science Buddies Kit is available for purchase.
Cost Very High (over $150)
Safety Adult supervision is recommended. Use caution when connecting the four 9V batteries. Ensure that the wires/connectors do not come in contact with each other to cause a short or the batteries will become VERY hot and can possibly cause burns. Cobalt nitrate can cause skin and eye irritation. It is recommended to wear disposable gloves when handling cobalt nitrate.
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