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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
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 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
thumbnail You have most likely witnessed the change that occurs as a banana ripens It changes from green and relatively hard to yellow and soft. The flavor also changes, from bitter to sweet. What happens during ripening? One big change is the increase in sugar content. In this food science fair project, you will measure how the sugar content of a banana changes as it ripens. Read more
FoodSci_p063
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Time Required Average (6-10 days)
Prerequisites You will need both ripe and unripe bananas for this science fair project, so be sure you can find them in your grocery store, particularly if it's the off-season.
Material Availability You will need to purchase a refractometer online. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety No issues
Science Fair Project Idea
thumbnail Have you ever experienced heartburn after eating a large, greasy meal? Or have you heard of someone complaining about heartburn pains? It's very common; over 60 million people in the U.S. have heartburn at least once every month. Heartburn pain usually results from stomach acids escaping from the stomach and irritating the esophagus above it. Luckily, there are medical drugs, called antacids, which can help relieve heartburn pain. But how do antacids work, and how effective are they? In this… Read more
BioMed_p010
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Wear safety goggles and gloves and have an adult help you when handling and working with the artificial stomach acid solution. Hydrochloric acid is corrosive to hands and eyes.
Science Fair Project Idea
thumbnail There is nothing quite like the smell of fresh-baked bread to make your mouth water! As any baker can tell you, you cannot bake bread without yeast. Yeast actually eat sugar so that they can reproduce and make more yeast, and make bread dough rise. But can they use sugar substitutes to do this? In this science project you will get to investigate how well yeast grow with sugar substitutes as a food source. Pass the butter, please! Read more
MicroBio_p005
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
Pennies are bright and shiny when they're new, but become quite dull with time. What causes such a drastic change? Oxygen in the air combines with the copper in the penny to form copper oxide, which makes the penny look dull and dingy. You can make the pennies look like new again by soaking them in an acidic solution, like vinegar. Vinegar dissolves the copper oxide, making the pennies look like new. It turns out, however, that the same process that makes the pennies shiny has bad consequences… Read more
Chem_p090
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need to order a copper test kit online. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety Adult supervision is recommended.
Science Fair Project Idea
You're probably familiar with sauerkraut, a German dish of cabbage that is fermented in a brine made of its own juice and salt. Have you heard of another cabbage dish, called kimchi? Kimchi is a traditional fermented cabbage dish from Korea. Koreans eat kimchi year round, enjoying its spicy taste and the fact that it contains loads of vitamins B and C. In this cooking and food science fair project, you will make kimchi from scratch and investigate changes in pH and glucose as the kimchi… Read more
FoodSci_p051
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability Specialty items: To obtain traditional Korean spices, you might have to go to an Asian market. But you can use commonly available substitutes, if desired.
Cost Low ($20 - $50)
Safety No issues
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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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail If you have ever prepared a cup of coffee or tea with sugar, you have probably seen that the grains of sugar quickly dissolve and completely disappear in hot water. But sugar is not the only type of solid that can readily dissolve in a liquid. In fact, there are some types of rocks that can be dissolved by common liquids. It might be hard to imagine large, hard rocks being eaten away by some ordinary fluids, right? But it actually happens all the time! In this geology science project, you will… Read more
Geo_p047
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Small limestone rocks are needed to do this science project. See the Materials and Equipment list for details. Note: The listed time required to do this science project includes shipping time.
Cost Average ($50 - $100)
Safety No issues
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