1. Slide 8 - 1 Copyright © 2009 Pearson Education, Inc. Unit 5 Conversions within the Metric System You will need your textbook and a calculator for this lesson

2. Slide 8 - 2 Copyright © 2009 Pearson Education, Inc. SI System and U.S. Customary System Most countries of the world use the Systéme international d’unités (which means international system of units)or SI system. The SI system is referred to as the metric system in the United States. The U.S. is one of the very few countries that does not use the metric system.

3. Slide 8 - 3 Copyright © 2009 Pearson Education, Inc. Basic Terms a little more than a quart volumeLliter About 0.0022 pounds massggram About 39 inches lengthmmeter Comparison to U.S. Common Use AbbrevMetric Term

4. Slide 8 - 4 Copyright © 2009 Pearson Education, Inc. Metric Prefixes 1/1000 of base unitmmilli 1/100 of base unitccenti 1/10 of base unitddeci base unitL,m,gBasic unit 10  base unit dadeka 100  base unit hhecto 1000  base unit kkilo MeaningSymbolPrefix

5. Slide 8 - 5 Copyright © 2009 Pearson Education, Inc.

6. Slide 8 - 6 Copyright © 2009 Pearson Education, Inc. Temperature The term degrees Celsius (ºC) is used to measure temperature. Water boils212ºF100ºC Body temperature98.6ºF37ºC Comfortable room71.6ºF22ºC Water freezes32ºF0ºC Description ºFºC Temperature

7. Slide 8 - 7 Copyright © 2009 Pearson Education, Inc. Conversions To covert from Celsius to Fahrenheit use the following formula. To covert from Fahrenheit to Celsius use the following formula.

8. Slide 8 - 8 Copyright © 2009 Pearson Education, Inc. Example: Conversions The air temperature on a warm summer day is about 85ºF. What is the equivalent temperature on the Celsius thermometer?

9. Slide 8 - 9 Copyright © 2009 Pearson Education, Inc. Example: Conversions The air temperature on a warm summer day is about 85ºF. What is the equivalent temperature on the Celsius thermometer?

10. Slide 8 - 10 Copyright © 2009 Pearson Education, Inc. Example: Conversions The temperature of a cold glass of milk is about 5ºC. What is the equivalent temperature on the Fahrenheit thermometer?

11. Slide 8 - 11 Copyright © 2009 Pearson Education, Inc. Example: Conversions The temperature of a cold glass of milk is about 5ºC. What is the equivalent temperature on the Fahrenheit thermometer?