Friday, August 6, 2010

What is the independent and dependent variable for my project, also the control group?

i'm doing a science project...... which flavor of haagen daz ice-cream melts the fastest, vanilla, chocolate, or strawberry?


independent variable=


dependent variable=


control group=What is the independent and dependent variable for my project, also the control group?
independent variable = temperature of room or air.


dependent variable = ice cream brand.


control group = get a diffrent brand.What is the independent and dependent variable for my project, also the control group?
You're trying to measure melting times, so the dependent variable is melting time. That's because melting time *depends* upon the flavor of the ice cream.





Next, the independent variable is the flavor of ice cream. This is because the flavor of ice cream doesn't *depend* on anything as it's just chosen to be observed.





Finally the control group isn't obvious. You need to pick one of the flavors to use as a control. I'd suggest using vanilla because it's usually considered a ';plain'; flavor.





For your science project, I'd recommend taking several different samples of your ice cream.





I'd do 10 samples of 1 ounce of each flavor. This would be a total of 30 samples. Then record how long it takes for each 1 ounce sample of each flavor to melt.





Then I'd do 10 samples of 2 ounces of each flavor. This is another total of 30 samples.





This adds up to a somewhat large quantity of ice cream, but you can compare and contrast the different flavors. You can write about whether a 2 ounce sample melts faster than a 1 ounce sample or at the same rate.





You should try to predict what will happen before hand.





Also, try to keep the shape of the samples the same. Differing amounts of surface area will cause the ice cream to melt at different rates. You may want to write about this as well.
independent variables- type of ice cream, because it's different for each, but you control it





dependent variable- amount melted, because you have no direct control over it.





control- time to melt, because you control it and it stays the same for all of them, controling it.
independent variable = type of ice cream


dependent variable = time to melt


control group = ground ice?
independent: Flavor of ice cream


dependent: Melting time


There would be no control group
independent=temperature, flavor


dependent=how much it melts in the given time


control=idk

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