If this is going to be a fair test, what variables should they control?
A. Amount of water and sugar in each cup, method of stirring, time when the solid is added to water, how long each solution is stirred
B. Amount of water and sugar in each cup, method stirring, how long each solution is stirred
C. Amount of sugar in each cup; method of stirring, time when the solid is added to water, how long each solution is stirred
D. Amount of water in each cup, method of stirring, time when the solid is added to water; how long each solution is stirred
Answers & Comments
Answer:
B
Explanation:
not sure po...
but hope it helps