Question

which type of investigation is the group A group of students is setting up a test to see whether earthworms like those shown in the photo prefer rough or smooth surface which type of investigation is the group doing

Answer 1

Answer:

There is no attached photo in this question, however, the question can still be answered. The question also lacks options; they are

A.Comparative B. Descriptive. C. Controlled. D. Experimental

The answer is D. Experimental investigation

Explanation:

There are three types of investigations in science namely: descriptive, comparative, and experimental investigations. Experimental investigations are those investigations that has to do with the testing of how one variable affects another.

In an experimental investigation, a variable called INDEPENDENT VARIABLE is changed to effect a response in another variable called DEPENDENT VARIABLE. In this question, a group of students is testing to see if earthworms prefer rough or smooth surface. Hence, they are testing to see how texture of a surface (rough or smooth), which is the independent variable affects the preference of earthworm. Hence, it is an EXPERIMENTAL VARIABLE.