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Others Like “Spin Zone: Separating Butter with a Salad Spinner Centrifuge”

Project Idea
thumbnail It is fun to shake up a snow globe and watch the "snow" slowly fall. You can imagine that if the snow fell down very quickly it would be disappointing. But there are times when scientists in a laboratory want this to happen. Scientists use samples that have liquid mixed with small, solid pieces (like the inside of a snow globe), and they need all of the solid pieces in a clump, separated from the liquid. Instead of waiting for the pieces to slowly fall out of the liquid, scientists speed up… Read more
BioChem_p041
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability You will need to purchase the centrifuge tubes online. See the Materials and Equipment section for details.
Cost Average ($40 - $80)
Safety No issues
Project Idea
thumbnail Have you ever looked in the kitchen cupboard and found a container of tiny white grains, but you were not sure if they were sugar or salt? They look very similar. How could you tell them apart? Well, you know that sugar and salt taste very different. Taste is actually called a property, and properties are used to describe and identify different materials. Properties can also be used to physically separate things. In this science project, you will use different properties to create a way… Read more
BioChem_p046
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Iron filings and neodymium magnets may need to be specially ordered. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety An adult's help may be needed for using a knife and scissors to cut a plastic bottle. Follow all safety precautions when handling the neodymium magnets; these magnets should never slam together, never pinch fingers or skin, never be swallowed, and should be kept away from all electronic devices. Keep them out of reach of all young children and pets. An adult should help if a stovetop or oven is used.
Project Idea
thumbnail Hot pancakes with butter running down the sides, freshly baked biscuits and pastries with butter, hot flaky potatoes with melted butter. Yum! It seems like everything tastes better when you add butter. But what is butter and how is it made? In this food science fair project, you will find out, and you will test different conditions for making butter and determine the best method. Read more
FoodSci_p050
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Project Idea
thumbnail Apple pie is one of America's traditional desserts. It can be enjoyed on its own or with a scoop of vanilla ice cream. The cool sweetness of the ice cream combines with the warm apples and flaky pastry to create a taste sensation. However, if the pastry that surrounds the apples is heavy or chewy then that can really affect how much you enjoy this treat. But how do you make a pastry that is light and flaky? In this cooking and food science fair project, you will find out by experimenting with… Read more
FoodSci_p055
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites You must have access to a refrigerator, an oven, and a stovetop.
Material Availability Readily available
Cost Low ($20 - $50)
Safety Minor injury is possible.
Project Idea
thumbnail The first bite of a fresh-picked apple, the crunch of morning toast, the deep cut into rich, flaky layers of baklava, the pleasing snap of a chip. Besides being delicious, what do these foods have in common? They're crisp. They have a brittleness that causes them to shatter in your mouth when you first bite into them. It's a sensation that many people enjoy. Making potatoes crispy requires some extra cooking steps, as you'll discover in this food science project, but the results are well worth… Read more
FoodSci_p042
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision is required. Use caution when using a sharp knife and when working around a hot oven. You should not do this science fair project if you are allergic to potatoes or other vegetables from the nightshade family of plants.
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.
Project Idea
Often, when we think of something that is solid we think about rocks. But in reality, rocks have tiny holes of air inside them. This is called porosity. In this science project you can find out what it means to be "solid as a rock!" Read more
Geo_p012
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Project Idea
In this cooking and food science fair project, you will explore the role of proteins as emulsifying agents. Emulsifying agents are substances that are soluble in both fat and water and enable fat to be uniformly dispersed in water as an emulsion. Foods that consist of such emulsions include butter, margarine, salad dressings, mayonnaise, and ice cream. Emulsifying agents are also used in baking to aid the smooth incorporation of fat into the dough and to keep the baked goods tender. Natural… Read more
FoodSci_p021
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Project Idea
thumbnail Have you ever wondered why some things disappear when they are put in water but other things do not? For example, you may have seen that salt disappears, or dissolves, when it is mixed in a glass of water. But when you throw a rock in a stream it will not usually dissolve, and instead it will just sink to the bottom. And then there are some things that do not act like the salt or the rock. These are called colloids. If you have made Oobleck out of cornstarch and water, then you have seen… Read more
MatlSci_p014
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Project Idea
thumbnail Oil spills devastate wildlife and our precious water resources. In this science project, you'll test the absorptivity of different materials (sorbents) to discover which ones are best at removing oil from water. Read more
EnvEng_p025
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Wear eye protection and gloves when preparing coconut husks. Adult supervision required when cutting sorbents with scissors or cracking coconuts with hammers.
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