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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
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
Have you ever made your own ice cream? If you have, you probably know that you need to get the ice cream mixture really cold to freeze it quickly. Ice cubes alone will not do the job, but if you add chemicals, such as salt or sugar, to the ice cubes that surround the ice cream container, the mixture gets cold enough to freeze. Why does that work? How does adding salt or sugar affect the freezing point of water? Find out with this ice-cold science project and use your results to make your own… 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 A kit for this project is available from the .
Cost Average ($40 - $80)
Safety Be careful when handling the glass test tubes. Exposing them to very cold temperatures or rapid temperature changes makes them more vulnerable to breakage, especially when they get bumped or handled roughly.
Science Fair Project Idea
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
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
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
Have you ever noticed that the salt you are using says it is "iodized"? Iodine is an important micronutrient, which means we need it in small quantities to be healthy. Because iodine is rare in many people's normal diets, it is added to table salt. Then when people salt their food, they are also adding this important micronutrient. In this food science project, you will use some kitchen-friendly chemistry to investigate which types of salt have iodine added (in the form of iodide) and which do… Read more
FoodSci_p011
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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
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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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.
Science Fair Project Idea
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
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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