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Published byAugusta Harrington Modified over 4 years ago

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Lesson 2: Metric Mass E.Q.: How do we use the metric system to measure mass?

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History of Mass The balance was the first mass measuring instrument invented.

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Which is heavier? 1 pound or 100 grams 1 pound 1 kilogram or 1 pound 1 kilogram 1 ounce or 1000 milligrams 1 ounce

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Which is heavier? 1 pound or 100 grams 1 pound = 453 grams 1 kilogram or 1 pound 1 kilogram = 2.2 pounds 1 ounce or 1000 milligrams 1 ounce = 28.3 grams

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What exactly is mass? Mass refers to the amount of matter in an object.

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Metric Base Unit The base unit of mass in the metric system is the ____ and is represented by _. gram g

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Kilogram A kilogram is equal to the mass of the __________ _________ ________. InternationalPrototypeKilogram

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Mass 1 kg = ____ g 1g = ____ mg Which is larger? a.1 kg or 1500 g b.1200 mg or 1 g c.12 mg or 12kg d.4 kg or 4500 g 1000

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Instrument to Measure Mass You will use the _____ ____ ______ to find the mass of objects. Triple beam balance

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How to use a Triple Beam Balance 1 st – Place the film canister on the pan. 2 nd – Slide the large slider to the right until the arm drops below the line and then move it back one notch. 3 rd – Repeat the process with the 10 gram weight. When the arm moves below the line, back it up one groove. 4 th – Slide the one gram weight on the front beam until the lines match up. 5 th – Add the amounts on each beam to find the total mass to the nearest tenth of a gram.

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