PPT-The Metric System Units, Definitions and

H istory The Metric System Definition The metric system is a system of units for measurement developed in late 18th century France by the chemist Lavoisier to replace the disparate systems of measures then in use with a unified natural and universal system In the early metric system there were several fundamental or base units the grad or grade for angles the . Measurements and Abbreviations. There are others in the Student Handout book. The most common ones (Must know). C=Celsius. F =Fahrenheit. G or gr =Gram. Gr. = grain. L= liter. Ml= Milliliter. Mg=Milligram. By: Daniel Cornelius. Long, long ago.. Before “numbers”. 9. th. Millennium BC: Different types of clay tokens were used to tally agricultural products in Mesopotamia.. Use of written symbols to represent tallies.. Why do scientists need a standard system of measurements?. Remember that science must be . repeatable. – another scientist has to able to repeat your experiment using the same amounts, concentrations, lengths, weights, etc.. ~King Henry Died unexpectedly Drinking Chocolate Milk~. Unlike our . English system . of measurement with its feet and inches, quarts and gallons, . the . metric system is very . orderly . All . variations of the units of measure are really just the units multiplied by powers of 10. . Measurements and Abbreviations. There are others in the Student Handout book. The most common ones (Must know). C=Celsius. F =Fahrenheit. G or gr =Gram. Gr. = grain. L= liter. Ml= Milliliter. Mg=Milligram. Dr. . Amani. M. . Elsayed. Objectives. Review basic mathematics. Review units of measure. Whole Numbers . (10, 220, 5, 19). Fractions. Parts of whole numbers (1/4, 2/7, 11/13. ). Numerator . Why use the Metric System?. - Base of 10, making it easy to Use. - Consistent with other scientists around the world. . Metric system’s base units. -Length: meter (m). -Volume: liter (l). -Mass: kilogram (Kg). . No Cussing!. The following 4-Letter. words are forbidden here:. Inch Mile. Foot Pint. Yard Acre. And we never swear the . BIG F . (use. o. C). Please keep it clean and. Metric. SI System. The International System of Units. EQ. : Why do we convert units. ?. Vocabulary:. . metric, standard, conversion factor, unit. Activator – Anticipation Guide. For the following statements, decide T or F in the before column only.. Before Lesson (T/F) . System of measurement based on the decimal or powers of 10. The word ’metric’ comes from the French word for ‘measure’. Official name of the metric system is the . international system of measurements. a yard—is . the basis for the metric system. We can . increase. or . decrease. the value of a . base. unit by using a . prefix. 10. m. k. (This is now the same as 10,000 m). SI Units are easier to remember than English units because they are based on multiples of . The basic unit of length in the metric system All units of length in the metric system are derivedone hundredth1 centimeter1 one-hundredth of a meter10001 kilometer km1000 meters mhecto-1001 hectomete 4 Learning Objective(s) Describe the general relationship between the U.S. customary units and metric units of length, weight/mass, and volume Define the metric prefixes and use them to perform is used . very little in the United States. The metric system does not use . inches, feet. , pounds, and so on, but its units for time and electricity are the same . as those . used now in the United States.