For my science fair project this year, I will be testing the solubility of salt in various liquids at various temperatures. For example, I might put 40 grams of salt in 100 grams of water at 40 degrees F, then 60 degrees F, then 100 degrees F.
Then, I'd put 40 grams of salt in 100 grams of Sprite at 40 degrees F, 60 degrees F, and 100 degrees F.
Then, I'd put 40 grams of salt in 100 grams of Coca-Cola at 40 degrees F, 60 degrees F, and 100 degrees F.
What would my controls be? What would my independent and dependent variables be? This is the part that is the toughest for me to understand. I'm not sure what any of these things mean.
Then, I'd put 40 grams of salt in 100 grams of Sprite at 40 degrees F, 60 degrees F, and 100 degrees F.
Then, I'd put 40 grams of salt in 100 grams of Coca-Cola at 40 degrees F, 60 degrees F, and 100 degrees F.
What would my controls be? What would my independent and dependent variables be? This is the part that is the toughest for me to understand. I'm not sure what any of these things mean.
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so that you know what they are:
control = something you dont change at all; if you compare the water at those 3 temps, your control would be that you used water all the trials
independent = something you intentionally change (temp)
dependent = the thing that changes because you changed your independent variable (solubility)
control = something you dont change at all; if you compare the water at those 3 temps, your control would be that you used water all the trials
independent = something you intentionally change (temp)
dependent = the thing that changes because you changed your independent variable (solubility)
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A control would be just regular water, sprite, coke, etc... The independent variable would be what the dependent variable depends on. Solubility would be the dependent variable and temperature would be the independent variable.