PLEASE ANSWER QUICK, I’LL GIVE BRAINLIEST TO THE CORRECT ONE!

1. What are the independent and dependent variables in each of the experiments?

2. What information should be added to the diagram to give the reader a better understanding of how these experiments
were conducted?

3. What items should have been CONTROLLED in the experiments?

4. How much confidence would you have in the conclusion of experiment 3 if you found out that the temperature was not
controlled? Explain your reasoning.