18-09-2017
Biology

contestada

Which of the following is an example of an experimental scientific investigation?

A- Placing test tubes in an ice bath for 15 minutes

B- Recording the sound of class breaking

C- Noting the pH of a solution on a digital meter

D- Noting the color of a solution when heated

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dakotamcclella dakotamcclella

18-09-2017

I believe the answer is A

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teamla2020 teamla2020

02-09-2018

A. PLACING TEST TUBES IN AN ICE BATH FOR 15 MINUTES

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