Observations are things that can be perceived with senses (i. e., sight, sound, smell, taste, and touch). Inferences are decisions based on what was observed.

Use specific examples from Joseph Priestley’s experiment to explain the relationship between what he observed and what he inferred.

Joseph Priestley was a famous philosopher of the 18th century, who is famous for his experiments with the air, optics, electricity and soda water. His work was considered to be quantitative because he believes in practical application.

His experiment that leads to the famous discovery of placing a mice in a closed container with the mercuric oxide. He comes to know that mice survived because of common air-oxygen. He then finds the use of oxygen in the process of respiration and its use in the blood.