Units and Conversions International System of Units (SI) -based on seven base units: Base Unit Name Symbol Length meter m Mass kilogram kg Time second sec Temperature Kelvin K Amount of substance mole mol Electric current ampere A Luminous intensity candela cd

Units and Conversions Additional Units Volume Unit Symbol liters L cubic centimeters cm3 milliliter mL Pressure Unit Symbol kiloPascal kPa Torr / millimeters of mercury Torr / mm Hg atmosphere atm Other Mass Units Symbol gram g milligram mg Other Temperature Units Symbol Fahrenheit °F Celsius °C

Units and Conversions Kilo (k) = 1000 Cent (c) = .01 Milli (m) = .001 Millenium  1000 years in 1 millenium 1 cent  100 cents in a dollar kilogram  1000 grams

Units and Conversions Micro (µ) = 0.000001 Nano (n) = 0.000000001

Units and Conversions To solve problems: “big units” “small units” kilo, hecto, deca deci, cent, milli big to small  move decimal point to right small to big  move decimal point to left OR Use conversions… see examples “base units” grams, liters meters

Units Conversions 1. 42 cm = ? m 2. 16 mL = ? L 3. 2 km = ? m 4. 7.25 m to cm 98.26 mg to g 6. 0.082 cm to m 7. 21.76 mL to L 8. 43.7 mL to L 9. 2.0155 L to mL 10. 6.44 g to mg 11. 2.087 g to kg 12. 26.5 L to mL 13. 2.05 m to cm 14. 4.56 cm to m 15. 75.96 m to mm 16. 0.0026 m to mm 17. 0.0012 km to m 18. 0.00493 mL to L 19. 0.450 L to mL 20. 16.3 mg to g