Question

Bena thinks that dissolving more salt in water causes the mixture's freezing temperature to change.

Which is the best type of scientific investigation for Bena to use to study this?

A.an experimental investigation, because it can provide the most data

B.a comparative investigation, because it uses a wide range of variables

C.an experimental investigation, because it allows for the control of variables

D.a comparative investigation, because it would take the least amount of time​

Answer 1

I believe its C

Step-by-step explanation:

C because when you'll have control over the variables (salt and water) You can measure how much salt or water is actually needed to determine the freezing temp.