Today we went over the homework from yesterday on metric conversion. The answers to that homework is located here. We learned about scientific notation and significant figures. Scientific notation is a method that scientists use to write really large or small numbers in a compact from. It involves 2 parts: a number between 1 and 10 and then a power of ten.
Significant figures are important because we need to concern ourselves with accuracy and precision in a scientific setting. Accuracy is how close a measurement is to the accepted value. Precision is how close repeated measurements are to each other. We learned rules on how to count significant figures and were just about to do some examples when the bell went. We will finish this tomorrow in class and then have the rest of the period to study for your exam on Friday.
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