Chapter 1: Introduction to Science

The Metric System Length  Unit: meter (m) liter (l) gram (g) Volume – amount of space an object takes up  Unit: meter (m) liter (l) gram (g)  Formula: Length x Width x Height Temperature  Unit: Celsius (  C) or Kelvin (K) Mass – amount of matter in a substance  Unit: meter (m) liter (l) gram (g)  Mass and weight are not the same! ▪ Weight depends on the gravitational pull on matter; mass does not

The prefixes used in the metric system are set up as the larger value to smaller value k h dk d c m Kilo Hecto Deka Base-Unit Deci Centi Milli (king henry died belly-up drinking chocolate milk) Meter (m) Gram (g) Liter (l) Larger Smaller

Metric Abbreviations hg dkl Rather than write out centimeter, we abbreviate it as cm The first letter c is for the prefix centi and the second is m for meter How about hectograms? How about dekaliters? How about deciliters? dl

Practice! King Henry Died Belly-Up Drinking Chocolate Milk 250 m = _____ km 5.6 kg = _____ g 160 cm = _____ dkm 120 mg = ____ g 4300 ml = _____ hl