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Others Like “The Art & Science of Making Yummy Yogurt”

Project Idea
What is cooking? Cooking is applying heat to food in order to help make it taste good. But the decision to cook your food doesn't end there. Do you want to cook it at a low temperature for a long time or do you want to apply high heat and cook or sear it right away? You might think that a pot is just something in which to cook your food, but it is also a cooking tool. Pots and pans are made from different kinds of materials, such as aluminum, stainless steel, iron, and ceramics. Each of these… Read more
FoodSci_p031
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- Less Details
Time Required Short (2-5 days)
Prerequisites Access to cooking pots made of different materials.
Material Availability Readily available
Cost Low ($20 - $50)
Safety Minor injury possible. Always exercise caution when using a stove. Adult supervision is required. Make sure that the cooking pots you have chosen to test are designed for stovetop use.
Project Idea
thumbnail Nut clusters, chocolate-dipped candies, and chocolate-dipped strawberries are just some of the delicious goodies that have a thin, rich layer of chocolate wrapped around them. But how do pastry and candy chefs make these delectable treats? The first step is to melt and temper chocolate. Tempering is a process in which the cocoa butter in chocolate is hardened into a specific crystalline pattern. When the cocoa butter molecules are in this pattern, the chocolate is shiny and breaks with a sharp… Read more
FoodSci_p038
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Minor injury possible. Use caution when using a stovetop. Hot chocolate can burn. Use care when working with hot chocolate. Adult supervision recommended.
Project Idea
thumbnail French fries, hash browns, mashed potatoes with gravy, potato latkes, there are so many things to make with the humble potato. The potato is a tuber from the perennial plant Solanum Tuberosum of the Solanaceae family. There are actually about 5,000 varieties of potatoes, but most of them can be traced back to the original potato from southern Peru. This single ancestor originated more than 10,000 years ago. In addition to being high in vitamins and minerals, potatoes have a varying amount of… Read more
FoodSci_p032
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Minor injury possible. Be careful using a knife. Adult supervision is required when using a knife.
Project Idea
When you think of successful inventions from the 1900's that have dramatically changed how people live, what comes to mind? The car? Radio? TV? The computer? What about the microwave oven? You might not remember a time when microwave ovens were not a standard part of most kitchens, but your parents or grandparents probably do. They can remember when heating leftovers took a good 30 minutes in a traditional oven. Or thawing a food from the freezer meant leaving it in the refrigerator overnight.… Read more
FoodSci_p033
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Time Required Average (6-10 days)
Prerequisites Access to a microwave oven and microwave-safe cookware.
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision is required when using the microwave oven.
Project Idea
thumbnail As you know, vegetables not only taste good, but they are good for you. Many vegetables are a great source of vitamin C. Vitamin C is a water-soluble antioxidant that plays an important role in protecting the body from infection and disease. Humans do not make vitamin C on their own, so we must get it from dietary sources. Potatoes, like the ones shown in Figure 1, below, are one good source of vitamin C. Does cooking them affect how much vitamin C they have? In other words, if you boil a… Read more
FoodSci_p024
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Titration equipment and supplies are needed. A kit is available from the [# Link Name="Chem_p044.7" Value="HtmlAnchor" #].
Cost High ($100 - $150)
Safety Adult supervision is required. Iodine solution is poisonous. Avoid skin and eye contact. Wear chemical safety goggles and rubber gloves when handling the concentrated solution. For more tips, consult the Science Buddies [# ProjectGuide Name="Advanced.ChemistrySafetyGuide" Value="HtmlAnchor" HtmlText="Chemistry Safety Guide" #].
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.
Project Idea
Whipped egg whites are used in many sweet and savory recipes. They are used to add air into cake batters, meringues, and soufflés. Egg whites, also known as albumin are 15 percent protein dissolved into water. When egg whites are beaten or whipped, the protein chains unravel. This is called denaturation. The process of whipping egg whites adds air to the mixture, in addition to denaturing the proteins. The denatured proteins create bonds with each other and trap air bubbles within themselves.… Read more
FoodSci_p036
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Project Idea
thumbnail Have you ever wondered how yogurt is made and what makes some yogurts different from other yogurts? You may have noticed that most yogurt containers advertise that the yogurt contains "live cultures." This means that there are living bacteria in the yogurt! These amazing bacteria can turn plain old milk into a yummy yogurt treat. In this science project, you will investigate whether the bacteria affect what the yogurt feels, tastes, and smells like by making your own yogurt at home! Read more
MicroBio_p010
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Requires parental supervision when cooking on the stove.
Project Idea
Brrrr, freezing cold! It's the worst nightmare of any fresh fruit or vegetable! If the produce in your kitchen had legs, they would run in a panic every time the freezer door opens. Why? Well, freezing temperatures are not kind to fresh produce. Freezing kills the plant tissues and alters them on both a chemical and physical level. Chemically, the enzymes in the produce become more concentrated and do not work normally, so that discoloration, off-flavors, vitamin breakdown, and toughness may… Read more
FoodSci_p035
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability A specialty item to help view the structure of the vegetables is optional.
Cost Low ($20 - $50)
Safety Adult supervision is recommended when using the stove and working around boiling water.
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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- Less Details
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.
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