I believe you use the pH scale with comparing acids and bases.
ANSWER: The 6 Science Process Skills
Observing. This is the most basic skill in science. ...
Communicating. It is important to be able to share our experiences. ...
Classifying. After making observations it is important to notice similarities, differences, and group objects according to a purpose. ...
Inferring. ...
Measuring. ...
Predicting.
The answer is A) air temperature.
May I see the answer choices? If so, then I can help. :)
Answer:
The fox is the tertiary consumer.
