The Scientific Method (chemija anglų kalba)

The scientific method is a process created in the seventeenth century through which hypotheses are developed, tested and either proven or disproven. It is the organized process of determining the accuracy of scientific theories through careful observation and experimentation.
The scientific method is used when creating and executing an experiment. The purpose of the scientific method is to have a systematic way of testing ideas and reporting results in the process of scientific inquiry. A key component of the use of the scientific method is that it ensures that the experiment should be able to be replicated by anyone. If that is not possible, then the results are considered invalid.
5. Draw conclusion
6. Communicate results
Before you can use the scientific method correctly in your own experiments, you must have a good understanding of independent and dependent variables. To better understand how the scientific method works in action, consider the following examples of simple experiments you can try yourself in everyday life.
Example: Freezing Water
Consider how the scientific method applies in this simple experiment with freezing water under two different conditions.
1. Define Purpose: I want to know if water freezes faster on its own or with sugar added to it.
2. Construct Hypothesis: The null hypothesis is that there will be no difference in how long it takes the water to freeze, whether or not it has sugar added to it. The alternative hypothesis is that there will be a statistically significant difference in freezing time between the two scenarios.
3. Test Hypothesis and Collect Data: Fill two identical containers with the same amount of room temperature water. Add a measured amount of sugar to one of the containers. Place the two containers into the freezer. At regular intervals of 15 minutes, open the freezer and observe the status of the water in each container. Continue...

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