BIO SCI 93 Lecture 2: NOTES on Scientific Measurments

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 93
• Professor: Michael Clegg

Document Summary

For each decimal, what is its prefix, the prefix symbol, and its exponential: 1,000, 0. 01, 0. 001, 0. 000001, 0. 000000001. Introduction to the metric system of measurements and its standard prefixes. Objectives: perform accurate measurements in proper standard metric units, perform simple units conversions in proper standard metric units. Lab notes: be sure the pointer is aligned with the zero indicator, the dial is set to zero and all the movable masses on the beams are set to zero. Each numbered increment on the dial represents 1g, while each un-numbered increment on the dial represents 0. 1g. To read the vernier and obtain the 0. 01g measurement of the measured object, simply find the mark on the dial that best aligns with one of the marks on the vernier. The amount of space that an object or a fluid/gas occupies and it is measured in liters (l) using a graduated cylinder or a pipet: 1 cm3 (cc) = 1 ml.