To see if they got the right answers and change it before the work is complete so that they don't end up with the wrong answer.
when scientist
Why do scientists believe there might be water on the Moon?
Scientists work together because, if one scientist get an answer wrong the other scientists might get it right and this is the same with experiments
There are various reasons. Here are some:They might be skeptical of the reliability or truth of what other scientists have claimed.They might be trying to understand the earlier results better.They might be hoping to extend the other scientist's results.They might be trying to determine whether there are limits to the applicability of the other scientist's results.
Scientists repeat their experiments because to make sure that their results are correct.
Microscope. A scientist might use a microscope. Well actually, it depends on the size of the animal. If it is microscopic, then scientists might have to observe it using it using a microscope. If it can actually be seen, then scientists mught actually take a sample of it back to the labratory to observe physically.
It might be Ahmed Zewail whom I have drawn from the wikipedia list of Egyptian scientists.
Scientists first create an hypothesis. They develop methods to prove their hypothesis. In order for other scientists to replicate the findings and prove or disprove another scientist's outcome, the original scientist MUST describe the methods used and the findings.
scientist use models to show or explain easier
If you do a search for questions about a specific scientists, you might encounter a photo of him or her attached to the question.
Scientists believe that there is liquid water, under the crust of Europa.
Scientist cannot safety do anything with measurements. They have to measure everything out.