0.25. A protein solution can be identified by performing the Eastassay. The solu

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0.25. A protein solution can be identified by performing the Eastassay. The solution turns old if the assay is positive. This color forms because of the presence of Capeer subate in proteins Scientific method (LA&1D A group of scientists working for Company Y want to test a new chemical t direct sunlight. The amount of redness is measured every 5 min for a total of 30 min. that they believe will act as a sunscreen and prevent size area and the test subject's arm is exposed to nburn. The same amount of lotion is applied to each person in the same For each person tested, 3 different lotions are applied to the test subject's arm: I. a lotion with the new sunscreen chemical called SunX II. a lotion with a different active sunscreen chemical that the company currently sells successfully called Sun IIl. a lotion that has all the same ingredients as the sunscreens, except it has no active sunscreen chemical Kissed 27. What question is being asked in the experiment above? 1s the hed Stonscreen (sun x) hate the Sane of elen nole 28. What hypothesis is being tested in the experiment described above? Read entire deseription above earefully! A. A hypothesis must be testable and falsifiable. Is the hypothesis you wrote above testable? Explain B. Is the hypothesis you wrote above falsifiable? Explain. 29. What is the prediction based on this hypothesis? (Remember a prediction is written as an "If.... then...." statement.) win Protect he Skin rem su A. What is the independent variable in this experiment? Why? 30. tinue 4

Explanation / Answer

27.

28.

A)

B)

29)

30)

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