Question

Which of the following is an example of an experimental scientific investigation? Noting the color of a solution when heated. Recording the sound of a glass breaking. Noting the pH of a solution on a digital meter. Placing test tubes in an ice bath for 15 minutes.

Answer 1

The correct answer is

Noting the color of a solution when heated

Because experimental scientific investigation is a when someone gets a answer of a question scientifically.

Which they make experiments, they observe stuff and they test theories.

And that's why your answer is A or #1 Noting the color of a solution when heated!

Sorry If I am wrong, but I took the test and I am sure about these answers < 3

Answer 2

Noting the color of a solution when heated

Step-by-step explanation:

Experimental scientific investigation is a process to get answer of question scientifically. This process makes uses of collecting observation and identifying the process in physical word.

Thus, all the option given are a part of scientific observation but only Noting the color of a solution when heated explains the experimental scientific investigation.