This is a PowerPoint presentation of the metric system, along with lecture notes, worksheets, and answer keys. It includes the reason scientists use the metric system (historical measurement), and detailed descriptions of the measurements for length - meters, mass - grams, volume - liters and cubic centimeters, and temperature. Slides in the presentation describe how to use a metric ruler, how to use liquid displacement to find volume, how to convert between Fahrenheit and Celsius, and how to co