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Measurement in Environmental Science class

Measurement in Environmental Science class. The common language of measurements in science used all over the world is the metric system. The metric system is a decimal system or a system based on ten. BASIC UNIT OF MEASURE:. Measuring Length. LENGTH The meter is the basic unit length

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Measurement in Environmental Science class

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  1. Measurement in Environmental Science class

  2. The common language of measurements in science used all over the world is the metric system. The metric system is a decimal system or a system based on ten. BASIC UNIT OF MEASURE:

  3. Measuring Length • LENGTH • The meter is the basic unit length • The tool that we use most often is the meter stick. • Longer distances would be measured in kilometers.

  4. Liquid Volume Volume is the amount of space something takes up • The basic unit of measure for volume is Liters. • Volume conforms to the container that contains it (shape) • The tool that we use to measure liquid volume is called the graduated cylinder. We measure from the bottom of a line called the meniscus. • Liquid Volume is measured in milliliters (ml) or liters (L)

  5. Solid volume • Solid Volume is measured in cubic centimeters (Cm3) • For Regular Solid Volume: Length X Width X Height • 2cm X 3 cm X 2cm = 12cm3 • For Irregular volume: (no regular shape) you must use the volume displacement method.

  6. place a known value in a graduated cylinder ( 7 ml) place the irregular object into the graduated cylinder measure the displacement of volume ( where did the liquid move up to) ( 9ml) Subtract the original volume from the new volume ( 2ml) Calculate the volume of the object as 2cm3 ( because it is a solid, not liquid) Volume Displacement

  7. Mass • the amount of matter in an object • The gram is the basic unit of measure • The tool that we use is the triple beam balance or digital scale • Mass is NOT the same as weight. Weight is mass + gravity.

  8. Density • the measurement of how much mass is contained in a given amount of volume of an object. • D= Mass ( measured in grams) • Volume (ml or cm3 ) • Water has density of 1g /cm3 • Objects greater that 1 will sink and objects less than 1 will float. • Each substance has its own characteristic density

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