Question

sam wonders if coke goes flat faster in cold temperatures or warm temperatures. which is the best hypothesis? a. if an opened coke is placed in the refrigerator, then it will not go flat as quickly as an opened coke at room temperature. b. take the lid off two cokes and put one back in the refrigerator and leave one on the counter. taste them after 4 hours. c. the coke in the refrigerator will go flat slower because the cold temperature will keep particles from moving as quickly. d. in a blind study, researchers found that consumers prefer pepsi to coke.

Explanation:

A hypothesis is a testable prediction. Option A is a testable "if - then" statement about coke going flat in fridge vs room temp. B is a procedure, C is an explanation (not a hypothesis structure), D is about preference (unrelated). So A fits.

Answer:

A. If an opened coke is placed in the refrigerator, then it will not go flat as quickly as an opened coke at room temperature.