Meters Grams and Liters Lesson 3 7 Measurement
- Slides: 44
Meters, Grams and Liters Lesson 3. 7 Measurement 8. 1 and 8. 2 1. Compare and order the relative size of common U. S. customary units and metric units. 2. Use proportional relationships and formulas to convert units from one measurement system to another.
The Metric System • The metric system is a measurement system based on our decimal (base 10) number system. • Other countries and all scientists and engineers use the metric system for measurement.
Metric Prefixes • Metric Units • The metric system has prefix modifiers that are multiples of 10. Prefix Symbol Factor Number Factor Word Kilo- k 1000 Thousand Hecto. Deca. Unit Deci. Centi. Milli- h da or dk m, l, or g d c m 100 10 1. 1. 001 Hundred Ten One Tenth Hundredth thousandth
Place Values of Metric Prefixes cm cg c. L Thousandth dm dg d. L Hundredth m g L Tenth dkm dkg dk. L One hm hg h. L Ten Hundred Thousand km kg k. L mm mg m. L
Meters • Meters measure length or distance • One millimeter is about the thickness of a dime.
Meters • One centimeter is about the width of a large paper clip • or your fingernail.
Meters • A meter is about the width of a doorway
Meters • A kilometer is about six city blocks or 10 football fields. • 1. 6 kilometers is about 1 mile
Gram • Grams are used to measure mass or the weight of an object.
Grams • A milligram weighs about as much as a grain of salt.
Grams • 1 gram weighs about as much as a small paper clip. • 1 kilogram weighs about as much as 6 apples or 2 pounds.
Liters • Liters measure liquids or capacity.
Liter • 1 milliliter is about the amount of one drop
Liter • 1 liter is half of a 2 liter bottle of Coke or other soda
Liter • A kiloliter would be about 500 2 -liter bottles of pop
Which unit would you use to measure the length of this bicycle? km m cm mm
Which unit would you use to measure the mass of a penny? km g c. L mg
Which unit would you use to measure the water in an aquarium? L m c. L mg
Which unit would you use to measure the mass of a feather? L m c. L mg
Which unit would you use to measure the mass of a student desk? kg g c. L mg
Which unit would you use to measure the mass of a whole watermelon? kg g c. L mg
Which unit would you use to measure the mass of an egg? kg g mm mg
Which unit would you use to measure a can of soup? k. L L mm m. L
Which unit would you use to measure this glass of milk? k. L L c. L m. L
Which unit would you use to measure the distance across Kansas? km m cm m. L
Which unit would you use to measure the height of a tree? km m cm mm
Which unit would you use to measure the length of a bracelet? km m cm mm
Changing Metric Units • To change from one unit to another in the metric system you simply multiply or divide by a power of 10.
To change from a larger unit to a smaller unit, you need to multiply. 1 km x 1000 = 1000 m 1 m x 100 = 100 cm 1 cm x 10 = 10 mm
Place Values of Metric Prefixes Move the decimal point to the right to multiply. cm c. L cg Thousandth dm d. L dg Hundredth m L g Tenth dkm dk. L dkg One hm h. L hg Ten Hundred Thousand km k. L kg mm m. L mg
Place Values of Metric Prefixes cm cg c. L Thousandth dm dg d. L Hundredth m g L Tenth dkm dkg dk. L One hm hg h. L Ten Hundred Thousand km kg k. L mm mg m. L
To change from smaller units to larger units you divide by a power of ten. 1000 mm ÷ 10 = 100 cm ÷ 10 = 10 dm ÷ 10 = 1 m
Place Values of Metric Prefixes Move the decimal point to the left to divide. cm c. L cg Thousandth dm d. L dg Hundredth m L g Tenth dkm dk. L dkg One hm h. L hg Ten Hundred Thousand km k. L kg mm m. L mg
Place Values of Metric Prefixes km kg k. L hm hg h. L dkm dkg dk. L m g L dm dg d. L cm cg c. L mm mg m. L 3 km 30 hm 300 dkm 30000 dm 300000 cm 3000000 mm 4 L 12 cm
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