Chapter 1: The Nature of Science and Technology

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Presentation transcript:

Chapter 1: The Nature of Science and Technology Section 2: Measurement---A Common Language

Use Target Reading Skills In the graphic organizer, ask a question each heading (A Standard Measurement System, Converting Between Units) Examples: What is the Standard measurement system that we should all use? How do you convert between units?

A Standard Measurement System The metric system is a system of measurement based on the number 10. Modern scientists use a version of the metric system called the International System of Units, abbreviated SI units.

A Standard Measurement System Circle the letter of each advantage of using SI as the standard system of measurement. A. Using SI allows scientists to compare data. D. Scientists can communicate with each other about their results. SI units are based on multiples of ten. List the SI prefixes in order from largest to smallest. 5. D (Kilo-) 6. A (Hecto-) 7. E (Deka-) 8. B (Deci-) 9. F (Centi-) 10. C (Milli-)

A Standard Measurement System Length is the distance from one point to another. One meter equals 100 centimeters. Circle the letter of a common tool used to measure metric length. B. Metric Ruler

A Standard Measurement System The basic unit of mass in the SI system is the kilogram (kg). 1 kilogram = 1,000 grams Volume is the amount of space an object takes up.

A Standard Measurement System 1 Liter = 1,000 milliliters 44 mL..........The name of the curve is the Meniscus. Circle the letter of each unit that can be used to measure the volume of a liquid. C. Liter (L) D. Milliliters (mL)

A Standard Measurement System Density is a measure of how much mass is contained in a given volume. The second (s) is the SI unit used to measure time. The temperature scale that scientists commonly use is the Celsius temperature scale.

A Standard Measurement System The official SI unit for temperature is Kelvin.

Converting Between Units An equation that shows how two units of measurement are related is called a(n) conversion factor. There are 240 cm in 2.4 meters.