I remember being taught the scientific method in 6th grade, 7th grade, and 8th grade lol. There are six steps to the scientific method.
1. Question/Purpose: What is it that you hope to learn or discover from the experiment.
2. Research: Gather as much facts and information about the topic as you reasonably can through books, internet, encyclopedias, experts, etc.
3. Hypothesis: Make an educated guess as to what you believe will be the outcome of the experiment.
4. Experiment: Carry out a procedural test to see if your hypothesis is correct.
5. Analysis: Take the data extracted from the experiment and see what is to be learned from the experiment. This is often done on a chart or graph.
6. Conclusion: See if your hypothesis is correct. What is the outcome of the experiment? What did you discover?
As for the second part of your question, scientific experiments are often repeated to see if the same result/outcome is produced multiple times and the conclusion can become an accepted scientific law. For example, let's say a group of scientists were conducting experiments to see whether dinosaurs existed. This is an actual topic of debate btw, but anyways if they were consistently getting results that they did exist, then the statement that dinosaurs did exist would be a scientific law or theory. I'm not sure if that's what you were asking, but I hope so.
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