Question

three types of scientific investigations
(exceeding)
practice it!
select the question(s) that would help determine
the type of investigation needed.
do you need a controlled setting to perform
the investigation?
does the time of day affect your
investigation?
what protective gear is needed to conduct
this investigation?
are you comparing something?
can you control the variables in the problem?

Explanation:

• "Do you need a controlled setting to perform the investigation?" helps determine if it's an experiment (which often requires a controlled setting).
• "Are you comparing something?" is relevant as comparative investigations involve comparing.
• "Can you control the variables in the problem?" is key for experiments (where variables are controlled). The time of day (second option) and protective gear (third option) are more about specific details of an investigation rather than determining the type.

Answer:

• Do you need a controlled setting to perform the investigation?
• Are you comparing something?
• Can you control the variables in the problem?