Metric System.

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Presentation transcript:

Metric System

Metric System Time Length Volume Mass Temperature Conversions

Metric Measures and Conversions The Latin prefixes used in the metric system literally mean the number they represent. 1 kilogram = 1000 grams A kilo is 1000 of something just like a dozen is 12 of something.

Metric Measures and Conversions To convert from a larger to smaller metric unit you always multiply (x) To convert from a smaller to larger unit you always divide (÷) kg  g mg l  ml km  m  cm  mm 1 kg = _____ g mg  g  kg ml  l mm  cm  m  km 1000 mg = ______ g

Metric Conversion Stair Chart km hm dam m dm mg cm mL mm EXAMPLE Length Volume

Conversion Example 1000mg =_______ g STAIR CHART Conversion Example 1000mg =_______ g To convert 1000 milligrams to grams you are moving upward on the stairs: Pretend you are standing on the milli-gram stair tread and to get to the 1-gram stair tread you move up 3 steps dividing by 10 each time. 1000/10 = 100 100/10 = 10 10/10 = 1 1000mg = 1 g More examples

Sample problems How big is this caterpillar? _____ cm _____ mm _____ m STAIR CHART Sample problems How big is this caterpillar? _____ cm _____ mm _____ m How big is this snail? _____ cm _____mm _____m 1.5 2.5 15 25 .015 .025 Length

Measuring Volume How much liquid is in this graduated cylinder? STAIR CHART Measuring Volume How much liquid is in this graduated cylinder? _____mL _____L 13 .013 Volume

Time SI unit: seconds (s) Measures the duration of an event. There are 60 seconds in 1 minute.

Length SI unit: meters (m) Measures the distance between two points. There are 10 mm in 1 cm.

Volume SI unit: liters (L) Measures the amount of space that an object or substance occupies. There are 1000 mL in 1L.

Mass SI unit: grams (g) Measures the amount of matter in an object. There are 1000 g in 1 kg.

Temperature SI unit: Celsius (C˚) Measures the amount of heat found. C˚ is not the same as F˚. 100 C˚ = boiling water 212 F˚ 0 C˚= frozen H2O = 32 F˚

After Bell Activity 1. How long is this snail in ____________ cm ____________ mm 2. How much liquid does this graduated cylinder have? ___________mL 3. What is the temperature?

What would you use to measure Volume ____ Mass____ Length ____