Which statement best describes a difference or similarity between a comparative investigation and an experimental investigation?
Answer
A
Comparative investigations may be impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations.
B
Comparative investigations involve variables that can be controlled, while experimental investigations allow for the use of a wide range of variables but do not have a control group.
C
Both experimental investigations and comparative investigations are designed to answer scientific questions.
D
Both experimental investigations and comparative investigations focus on making observations rather than collecting new data.