1) False. Scientists may predict something but realize a difference soon after before the test, so they could definitely change the hypothesis if they want. It’s only AFTER the experiment they cannot. Because a hypothesis is like a “guess” as to what’s going to happen, right?
2) False. A hypothesis can’t be “valid” because it’s literally a prediction.
3) True. Especially if you’re doing a chemistry lab, it’s really important things are done in order or else the product might result as something else you were expecting, or can be very dANGEROUS
4) True. The conclusion must be based on data because it’s the observation that was seen.
Hope this helps!! I could have answered in short form but I just wanted to make them understandable:)
C. It’s the process of Burning something
Answer:
Let other scientists closely review her work
Explanation:
Ideally, experiments are carried out by scientists to find solution to an observed problem or provide answer to a scientific question. However, the outcome of experiments are not generally accepted in the world of science until they are peer-reviewed.
Peer review is when other scientists in the same field (peers) with the scientist performing the experiment make a thorough evaluation in order to ascertain its quality as a scholarly research. Hence, in this question, the scientist could help other scientists judge the validity of her results by LETTING OTHER SCIENTISTS CLOSELY REVIEW HER WORK.
