Physical Science Chapter 2: Measurement

Vocabulary Words	Objective Questions
2-1 Description and Measurement	page 42
measurement estimation precision accuracy	Why do we take measurements? Describe the correct way to round a measurement. What is a significant digit? Be able to identify significant digits in a number. What are the rules for multiplying/dividing with significant digits? What are the rules for adding/subtracting with significant digits?
2-2  SI Units	page 50
length meter volume cubic meter mass kilogram weight temperature Fahrenheit Celsius Kelvin time second rate	What is SI? What is the advantage of SI? What is the purpose of prefixes? What are the three differnt temperature scales and who are they used by?
2-3 Drawings, Tables, and Graphs	page 56
table line graph bar graph circle graph x-axis y-axis independent variable dependent variable	What are the three different kinds of graphs?  Give an example when you would use each kind. Why do scientists use tables, illustrations, graphs, etc.? Explain the difference between tables and graphs.

*Science Stats:  Biggest, Tallest, Loudest    page 62-63