A circle graph would best help a student communicate a conclusion about an investigation involving....
A) the proportions by mass of three metals in an alloy
B) The amounts of heat released by three chemical reactions
C) The amounts of force required to accelerate three different masses
D) the electrical conductivity of three salt solutions

Question

A circle graph would best help a student communicate a conclusion about an investigation involving....
A) the proportions by mass of three metals in an alloy
B) The amounts of heat released by three  chemical reactions
C) The amounts of force required to accelerate three different masses
D) the electrical conductivity of three salt solutions

anonymous · Answer

A) the proportions by mass of three metals in an alloy

A circle graph, or pie graph, is used to represent parts of a whole. B, C, and D all discuss situations where there are 3 distinct things. In A, the three metals are all within 1 alloy, so it would make sense to show the percentages that each metal contributes to the overall whole of the alloy.