'|.Mercury oxide was heated in an apparatus, resulting in an increase in the amount of gas. When a lit candle was placed in this gas it burned more brightly. Explain the results of this experiment using, first the phlogiston theory, then the oxygen theory. 2. What is the difference between heat and temperature? 3. In what ways are both objectivity and subjectivity an essential component of science? 4. Give an example of a situation in which our perception of hot and cold does not match the measured temperature. 5. What does it mean that an experiment is well- controlled? 6. Even 'wrong' theories are able to explain and predict some results. Give an example (other than combustion) where two competing theories were both able to explain or predict an experimental result