B they help visualize things that are very complex, very large, or very small.
it would be at either A or B.
The Celsius scale (

).
In the Celsius temperature scale, the temperature at which water freezes is set conventionally at

, while the temperature at which the water boils is set at

. The Celsius degree is then defined as the unit corresponding to 1/100 of this time interval, between the temperature of freezing and boiling of the water.
Answer:
These are a part of lab procedures:
1. Write a hypothesis to answer a question.
2. Write a title at the top of a completed lab report.
3. Record the time to complete a chemical reaction.
These are NOT a part of lab procedures:
1. Create a question on the cause of a chemical reaction.