Question

Which of the following are essential steps when collecting data for a scientific investigation?

(Select the three correct answers.)

(1 point)

Ignoring results that seem to be unexpected.

Changing the procedure in the middle of the experiment.

Estimating measurements instead of using proper tools.

Using consistent and repeatable measurement techniques.

Defining the specific variables to be measured.

Recording all observations in a systematic way.

Answer 1

The three correct answers are:

- Using consistent and repeatable measurement techniques.
- Defining the specific variables to be measured.
- Recording all observations in a systematic way.

These steps ensure data are reliable, clear, and usable for analysis.