To solve the problem You ask a question. You may gather data. You form a hypothesis; a possible answer that you can test in some way. Usually a “if”, “then” statement..\Power Points Sem 1\Hypothesis.ppt..\Power Points Sem 1\Hypothesis.ppt
Testing Hypotheses Scientist test hypothesis by doing experiments. Good experiments test only one variable at a time. Variable is anything that can change in an experiment. (Many variables exist in this picture.)
What is an experiment? the act of conducting a controlled test or investigation the testing of an idea; "it was an experiment in living"; "not all experimentation is done in laboratories" to conduct a test or investigation; "We are experimenting with the new drug in order to fight this disease" a venture at something new or different; "as an experiment he decided to grow a beard"
What is a control? control condition: a standard against which other conditions can be compared in a scientific experiment; "the control condition was inappropriate for the conclusions he wished to draw" determining all factors that can affect the outcome of an experiment, and setting all those factors the same except for the one factor that is varied.
THEORIES - Explain In Science, a Hypothesis is the explanation for the events that have been observed. Scientists create hypotheses to try and explain the observed behavior of the world. They do so by creating an explanation that can be tested (an hypothesis). If a lot of evidence (data) is collected to support the hypothesis, then scientists accept the hypothesis as a good explanation, and it may, given even more testing, become an accepted theory.
Quick Review Scientific Method- a system of asking questions, developing explanations, and testing the explanations Hypothesis- a possible explanation of a problem or question Experiment- a controlled test Control- part of the experiment not being tested and is used for comparison Variable- any part of the experiment that can change Theory- logical explanation of an observation