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Scientific Law, Hypothesis, and Theory (graded)
What is a scientific investigation and what are the steps generally used to evaluate the results? Compare and contrast a scientific law, a hypothesis, and a theory, providing two examples of each. What types of models are used in scientific research?
Designing an Experiment (graded)
What do researchers mean when they say that they have designed a controlled experiment? What is an experimental variable? How do scientists test the data to make sure that what they are seeing isn’t just a random collection of measurements? Can you find an example of a controlled experiment using the Internet or a research journal? Perhaps you would like to describe how you might design an experiment to study something that you find interesting.