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The Metric System. Why do we use/have to learn about the Metric System? Almost all the countries in the world use metric system. Other countries companies.

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Presentation on theme: "The Metric System. Why do we use/have to learn about the Metric System? Almost all the countries in the world use metric system. Other countries companies."— Presentation transcript:

1 The Metric System

2 Why do we use/have to learn about the Metric System? Almost all the countries in the world use metric system. Other countries companies are refusing to buy products from the U.S.A. if they are not labeled in metric units. Scientists need a universal way to communicate data. 1/4

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4 What does the Metric System measure? Length - meters, m Mass - kilograms, kg (basic unit g) Volume - liters, L Time - seconds, s Temperature - Celsius, ºC 2/4

5 Volume For liquids, use a graduated cylinder Measured in liters (L) Milliliters are more common (mL) For solids, use math Measured in cubic centimeters (cm 3 ) l w h V = l · w · h cm 3 3/4

6 Important Conversions for Volume 1 cm 3 = 1 mL A sugar cube has a volume of 1 cm 3, which is equal to 1 mL 4/4

7 Kilo (k) 1000 units Hecto (h) 100 units Deka (dk) 10 units Basic Unit (m, g, L) Deci (d) 0.1 units Centi (c) 0.01 units Milli (m) units Metric Conversion (Staircase Method) To convert to a smaller unit, move decimal point to the right To convert to a larger unit, move decimal point to the left

8 For example… 7000 mg = ____ g Step 1: Determine if you are going to go up or down the staircase. Step 2: Determine how many steps there are from milligrams to grams. Step 3: Move the decimal that many places. Kilo (k) 1000 units Hecto (h) 100 units Deka (dk) 10 units Basic Unit (m, g, L) Deci (d) 0.1 units Centi (c) 0.01 units Milli (m) units

9 For example… 7000 mg = ____ g Step 1: Determine if you are going to go up or down the staircase. Step 2: Determine how many steps there are from milligrams to grams. Step 3: Move the decimal that many places. Kilo (k) 1000 units Hecto (h) 100 units Deka (dk) 10 units Basic Unit (m, g, L) Deci (d) 0.1 units Centi (c) 0.01 units Milli (m) units

10 Lets practice….15 L = _________ mL 20 cm = _________ m.47 km = _________ mm


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