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Others Like “When Science is Sweet: Growing Rock Candy Crystals”

Science Fair Project Idea
thumbnail Crystals come in all different shapes and sizes. However, the purest and cleanest crystals are usually also the ones that grow to be the largest in size. In this science fair project, you will compare the size and shape of crystals grown in three different temperature conditions: room temperature, in the refrigerator, and in an ice bath. With just water and borax, a household cleaning product, you can discover the best recrystallization method for growing large, pure crystals. Read more
Chem_p082
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision required when handling boiling water and borax. Borax is harmful if swallowed, inhaled, or contacts eyes. On rare occasion touching borax can result in rashes
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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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
Maple syrup is deliciously gooey and great on breakfast foods like pancakes and waffles. But it it has another amazing property. It can form crystals under the right circumstances, and the crystals change in size and shape, depending on temperature. In this science fair project, you will discover how to make crystals out of maple sugar, and study how their growth is affected by temperature. Read more
FoodSci_p044
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision is required.
Science Fair Project Idea
thumbnail You know that water can exist in three separate phases: solid (ice), liquid (water), and vapor (steam). To change from one phase to another, you simply add (or remove) heat. When water boils, what happens to molecules (for example sugar or salt) that are dissolved in the water? Do they boil off too, or do they stay behind? Read more
Chem_p024
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty items
Cost Very Low (under $20)
Safety Adult supervision required.
Science Fair Project Idea
thumbnail "Slurp...plop!" Recognize that sound? You might if your family usually serves jellied cranberries for the holidays. Jellied cranberries are thick, like gelatin, and retain the shape of the mold in which it was placed, which might mean Aunt Sue's turkey mold or even the shape of the can if you buy one of the popular canned versions. Taking a bite of wiggly jellied cranberries can be a fun addition to a delicious meal, but cranberries can also be served as a sauce. Both versions use the same… Read more
FoodSci_p061
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult assistance is required to make the cranberry sauce on the stovetop. The process involves boiling cranberries, sugar, and water. This mixture is prone to splattering as the cranberries pop open. Use caution to avoid being burnt by splattering cranberry sauce.
Science Fair Project Idea
thumbnail Whether you are sitting around a campfire, or drinking hot chocolate after a day in the snow, nothing says fun quite like a marshmallow! Even its name is soft and spongy! In this cooking and food science fair project, you will make your own marshmallows several different ways, and discover the three special ingredients that give marshmallows their unique texture. You will also find out why they melt so quickly. Explore the science of these sticky, spongy sweets! Read more
FoodSci_p065
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Be careful when heating syrup in the saucepan. Adult supervision is required.
Science Fair Project Idea
thumbnail Did you ever wonder how yeast makes bread dough rise? This project will show you what yeast does to make this happen. You'll also investigate the conditions yeast needs to grow. Read more
MicroBio_p008
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Time Required Short (2-5 days)
Prerequisites Good observational skills
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision recommended for handling hot liquids
Science Fair Project Idea
If you browse through a candy cookbook, you might notice that many of the recipes call for corn syrup in addition to sugar. Both sugar and corn syrup are sweet, so why do you need corn syrup if you already have sugar? In candy making, corn syrup is known as an interfering agent. But what does this mean and how does it work? You can find out for yourself by making two batches of rock candy, one with corn syrup and one without. For example, you could alter the science project by replacing 1… Read more
FoodSci_p017
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety This science fair project requires adult help. The boiling sugar solution is extremely hot.
Science Fair Project Idea
thumbnail Have you ever mixed together salt and sand? It is fun to see how all of those tiny grains of salt and sand mix together! But what if you had to separate them out again? Do you have nightmares of tiny tweezers, a magnifying glass, and hours spent picking grains of salt and sand apart? Do not be afraid, there is another way! In this chemistry science project you will use the differences in solubility between salt and sand to find out the simple "solution" to this problem. Read more
Chem_p016
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites none
Material Availability Readily available
Cost Very Low (under $20)
Safety This science project requires adult supervision. Be careful and have adult supervision when using the stove and oven, and handling the boiling water
Science Fair Project Idea
You're at the high school football game and it's getting pretty chilly as the sun goes down. You're determined to keep cheering for your team, but your hands are freezing—have you ever tried hand warmers? The chemistry within these little packets is pretty cool. Hand warmers provide a unique and fun way to study the chemistry of crystal formation and heat generation. By pressing a button in a pouch, which contains a supercooled solution, you start a rapid exothermic (heat-producing)… Read more
Chem_p085
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability You will need a hand warmer with sodium acetate solution, available in most sporting goods stores. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Adult supervision recommended when boiling the water.
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