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Others Like “How Salty Does the Sea Have to Be for an Egg to Float?”

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Science Fair Project Idea
Sauerkraut, pickled fish, pickled vegetables, kimchi, corned beef, processed cheeses, smoked lunch meats. Do you like these high-salt foods? What about your grandparents, do they? Do your grandparents seem to like most foods to be a bit saltier than you do? Try this science fair project if you want to find out more about the incredible, edible rock known as salt, and why people vary in how much of it they like to eat. Read more
HumBio_p026
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues. Adult supervision is recommended to help with the pouring of large pots of water.
Science Fair Project Idea
thumbnail Have you ever been to a buffet and found yourself surrounded by a wide variety of taste sensations? People are generally able to discern five basic tastes: sweet, umami (also known as savory), salty, sour, and bitter. How sensitive is a person's tongue for these basic tastes? Is it easier to detect some flavors at low concentrations compared to others? In this human biology science project, you will find out by exploring your taste thresholds for sweetness, saltiness, and sourness. Get ready to… Read more
HumBio_p013
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail Of course it can, you say: ice is water and ice floats! And you're right. But we're talking about water in the liquid phase (the title reads better without getting overly specific). So how about it? Can liquid water float on water? Check out this project to find out. Read more
OceanSci_p002
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
Many essential chemical reactions and natural biochemical processes occur in liquid solutions, so understanding the chemical properties of liquid solutions is fundamentally important. This project asks the basic question, how much of a substance can dissolve in water, for three different substances: ordinary table salt, Epsom salts, and sugar. Read more
Chem_p050
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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 Have you ever tasted a delicious burger and wondered how it got so much flavor? Maybe you have heard your family talk about marinating foods before cooking or grilling them. A marinade is a mixture of seasonings used to flavor or tenderize food. Most cooks have strong opinions about the best way to marinate their favorite food, be it a large steak or a tofu burger. In this cooking and food science fair project, you will run controlled tests to see what factors are most important in making a… Read more
FoodSci_p043
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision is required. Use caution and ask an adult to help you use the knife.
Science Fair Project Idea
You know there is sugar in non-diet soda, but just how much sugar? Sure, you can look on the ingredients label, but how do food scientists actually measure the amount of sugar in a solution? They use a simple scientific device called a hydrometer. The hydrometer floats in the solution that is being tested, and the higher it floats, the more sugar there is! In this science fair project, you will use a precision hydrometer to measure the amount of sugar in soda. Read more
FoodSci_p056
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability A precision hydrometer is required. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Adult supervision is recommended. Use caution, as the hydrometer could break into sharp pieces of glass if dropped.
Science Fair Project Idea
thumbnail Have you ever thought about being stranded on a desert island? How would you find water to drink? What would you need to survive? In this science fair project you'll discover how to turn the ocean into a source of freshwater by using the power of the Sun. Read more
EnvEng_p027
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision required when boiling, stirring, and pouring hot water, or when using a microwave oven or knife. Students who are allergic to red dyes should use beets for coloring.
Science Fair Project Idea
thumbnail Here's a riddle for you: What would a latté be without a froth of bubbly milk on top? Answer: Black coffee! And how about a pumpkin pie without the whipped cream? Answer: Sad. Delicious, edible foams are everywhere, from sodas, meringues, and soufflés to mousses and whipped creams. They provide a delicious, spongy contrast to the foods they accompany, and their airiness releases aromas that enhance the eating experience. So, what makes a good foam? One with high volume and lots of… Read more
FoodSci_p057
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability You will need to buy items from a science supply store. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Be sure to wear safety goggles. Wash your hands after handling raw eggs. You should not eat any of the foams you make in your experiment.
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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- Less Details
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 know that sugar makes food sweet. But did you know that there are different kinds of sugar? Sucrose is the granulated sugar that you usually use for baking. Another kind of sugar, which is found in honey and in many fruits, is glucose. In this science fair project, you will measure the concentration of glucose in a variety of foods. You will use special strips that change color in response to glucose, to measure the glucose concentration in different foods. Read more
FoodSci_p049
+ More Details
- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available.
Cost Low ($20 - $50)
Safety No issues
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