1.1 Using the Scientific Method Secience diflers tiom other human ways of knowin
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1.1 Using the Scientific Method Secience diflers tiom other human ways of knowing and learning by ts varied because it can be adjusted to where and how a study is being conducted, Suill, scientific method to come to a conclusion about certain aspects laboratory, we wil the scientii in Flgure 1.1, the scientific method involves making obserbgb use the experiments, and coming to a conclusion. Many conclusions o ormulating depicted develop a scientific theory the use sion about certain aspects of pillibug behavior. As the same topic allow scientists to Making observations As a first step in their study of a topic also instruments such as a microscope to make observations of world. Observ also include something you read, such as the introduction to this the Web, or talking to someone who has worked with pillbues for aboratory, or a Coogle sons Can h pillbugs for a long time keep notes their observations as you will when observing a pillbug Why must a scientist begin by making observations? Formulating a hypothesis Based on their observations, scientists about what they are investigating. Having read about the habitat of a a pillbug iuice. Knowing how a pillbug reacts, you will predict whether it will not move, move toward, or move come to a tentative explanation will be attracted toward or repelled by different substances, such as a dry powder or a fruit away from these substances. Now you can formulate a hypothesis, such as, "When presented with baking soda, a pillbug will not move at all. Why is a hypothesis called an "educated guess" Testing your hypothesis After formulating a hypothesis, a sclentist experimentally tests the hypothesis. A well-designed experiment must have a control and a sample or event that is not exposed to the testing procedure. If the control and the test produce the same results, either the procedure is flawed or the hypothesis is false. What is the purpose of a control The results of your experiment are called data. Data are any factual information that comes to light because of your experiment or perhaps from further observations you have made. It is very important for scientists to keep accurate records of all their data. When another person repeats the exact same experiment, their data should be the same. Why must a scientist keep complete records of an experiment? Conclusion The data will either support or not support the hypothesis. For example, if you have hypothesized that a pillbug will not move when presented with baking soda and it does move, your hypothesis must be rejected. If a pillbug does not move, it means your hypothesis has beern supported-and not that the hypothesis is true. After all, an instrument might be found that might detect an infinitesimal movement of a pillbug. Why don't scientists say they have proven their hypothesis true? Theory cell theory is based on observations made by many scientists who, over many years, have observed a A "theory" in science is an encompassing conclusion based on many individual conclusions in the same field. For example, the cell theory states that all organisms are composed of cells. The countless variety of living things. Obviously, we will not be developing any theories today. How is a scientific theory different from a conclusion?Explanation / Answer
1)Observations are very important part of scientific studies . These observations helps the scientist to collect the data and record the data ,so that they can be used to test hypothesis and theories .
In a way , we can say that they somehow fasten the process of scientific investigations .
2) Hypothesis is called an educated guess because it predicts the outcome of a particular experiment based on prior evidences and knowledge . But nowawnow scientists are supporting the fact that hypothesis shouldn't be called an educated guess .
3) The control acts as a reference point in an experiment . It is used to compare the results of experiment , by which we can see if we got positive findings or negative findings .
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