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Metric Units of Mass, and Capacity
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The Metric System The metric system of measurement is a decimal system that uses prefixes to relate the sizes of units to standard units. The standard unit of mass is the gram. The standard unit of capacity is the liter.
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Metric Prefixes kilo1,000 hecto100 deka10 deci0.1 centi0.01 milli0.001
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Mass – the amount of matter that an object has. The standard unit is a gram. A gram is about the mass (or, basically, the weight) of a paper clip. 1,000 grams make a kilogram. You would use kilograms to measure heavier things, like desks and people. A kilogram is roughly equivalent to the weight of a one liter bottle of water. A newborn baby weighs about 3 kg. A milligram is very small. It takes 1,000 mg to make a gram. An eyelash weighs about 1 mg.
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Mass - weight In the metric system, all units are defined in terms of a basic unit. The basic unit of mass in the metric system is the gram. 5
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Everyday items you could use to associate with mass in the metric system. milligram - a grain of salt gram - large paper clip kilogram - math textbook 6
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Mass - grams 1 gram = 1000 milligrams 1 kilogram = 1000 grams 7
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Capacity – the amount of liquid an object holds. The standard unit is a liter. A bottle of juice holds about a liter of liquid. 1,000 liters make a kiloliter. If you filled 2-3 bathtubs with water, you would have about a kL of water. A milliliter is very small. It takes 1,000 mL to make a liter. A couple of drops of water would be equivalent to 1 mL. You would use milliliters to measure how much liquid was in a glass, or a juice box, or a can of soda.
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Capacity - volume In the metric system, all units are defined in terms of a basic unit. The basic unit of capacity in the metric system is the liter. 9
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Everyday items you could use to associate with capacity in the metric system. milliliter - 10 drops of food coloring liter - a small pitcher of water kiloliter – hot tub or spa 10
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Capacity - liters 1 liter = 1000 milliliters 1 kiloliter = 1000 liters 11
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Measures Test your knowledge of Litres and millilitres Start
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Question 1 1 litre = 100 millilitres 1000 millilitres 10 millilitres
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Try Again! Back to Question 1
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Click on the star for Question 2
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How many millilitres are in ½ litre? 50 mls 100 mls 500 mls
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Click on the star for Question 3
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How many millilitres are there in one quarter (¼ ) of a litre? 50 mls 250 mls 500 mls
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Click on the star for Question 4
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How many millilitres are there in ¾ of a litre? 750 mls 75 mls 50 mls
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Click on the star for Question 5
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Question 5 ½ (half) litre is the same as: 5.0 litres 0.5 litres 0.1 litres
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Click on the star for Question 6
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Question 6 ¼ (one quarter) of a litre is the same as: 1.4 litres 0.5 litres 0.25 litres
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Click on the star for Question 7
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Question 7 ¾ (three quarters) of a litre is the same as: 0.75 litres 7.5 litres 3.4 litres
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Click on the star for Question 8
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Question 8 1.5 litres is the same as: 150 mls 1500 mls 1550 mls
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Click on the star for Question 9
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Question 9 1.25 litres is the same as: 1250 mls 125 mls 250 mls
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Click on the star for Question 10
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Question 10 5 litres is the same as 50 mls 500 mls 5000 mls
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Finished!!
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