safety rules  

• no eating, drinking, or smoking in the laboratory
• broken glass must be disposed in the glass disposal box (to be only used for broken glass)
• inform instructor immediately if anyone is cut or injured
• mercury from broken thermometers should only be cleaned up by the instructor w/ a mercury cleaning kit
• be careful w/ glassware, never try to force glass pipettes into the pump
• wear close toed shoes
• know where to find emergency equipment
• report anything that appears hazardous to the instructor
• don't bring children to the lab

prefixes of metric system  

• Giga (G) - 109
• Mega (M) - 106
• Kilo (k) - 103
• Deci (d) - 10-1
• Centi (c) - 10-2
• Milli (m) - 10-3
• Micro (µa) - 10-6
• Nano (n) - 10-9
• Pico (p) - 10-12
• Femto (f) - 10-15