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Others Like “Saturated Solutions: Measuring Solubility”

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Science Fair Project Idea
A solution consists of a solute dissolved in a solvent. A solution is saturated when no additional solute will dissolve in it. You'll need a gram balance, a 100 ml graduated cylinder, three beakers or glass jars, three saucers, water, 50 g non-iodized salt (NaCl), 50 g Epsom salts (MgSO4) and 250 g sugar (sucrose). Method 1: Measure 100 ml water and pour into an empty beaker or jar. Weigh out the suggested amount of the solute to be tested. Add a small amount of… Read more
Chem_p037
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Time Required Average (6-10 days)
Science Fair Project Idea
thumbnail Have you ever made your own ice cream? If you have, you probably surrounded the ice cream container with ice and rock salt to get the mixture cold enough to freeze. But why does that work? How does adding salt (or other substances) affect the freezing point of water? Find out with this ice-cold science project. Read more
FoodSci_p013
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Time Required Short (2-5 days)
Prerequisites Understanding the concepts of molecular weight and moles.
Material Availability Specialty items are needed. See the Materials tab for details
Cost Average ($40 - $80)
Safety No issues
Science Fair Project Idea
thumbnail If you live in a place that gets cold in the winter, you have probably seen trucks out spreading a mixture of sand and salt on the streets after a snowfall to help de-ice the road. Have you ever wondered how this works? This basic chemistry project can give you some clues. Read more
Chem_p049
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
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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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
A solution consists of a solute dissolved in a solvent. A solution is saturated when no additional solute will dissolve in it. Can a saturated solution of sodium chloride dissolve any Epsom salts? Can a saturated solution of Epsom salts dissolve any sodium chloride? How does solubility vary with temperature? How does solubility vary with the surface area of the solute? Design experiments to find out! (Gardner, 1999, 16-17, Stretton, 2004) Read more
Chem_p038
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Time Required Average (6-10 days)
Science Fair Project Idea
thumbnail Have you ever been swimming at the beach and gotten some water in your mouth by mistake? Then you know that the ocean is very salty. But what about other bodies of water? How much salt do they have compared to the ocean? Read more
OceanSci_p009
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
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
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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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
Can water remain liquid below its normal freezing point? If it does, that water is supercool(-ed). This project shows you a method for supercooling water. You can test water from different sources to see whether or not it can be supercooled. Read more
Phys_p033
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available. Project will take longer if you have to order and ship a thermometer.
Cost Low ($20 - $50)
Safety No issues
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
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