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Measurement

Measurement. The SI System of Measurement. The International System of Units (abbreviated SI) is the modern form of the metric system and is the world's most widely used system of measurement, used in both everyday commerce and science. Units of Measurement. l ength = meters (m)

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Measurement

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  1. Measurement

  2. The SI System of Measurement The International System of Units (abbreviated SI) is the modern form of the metric system and is the world's most widely used system of measurement, used in both everyday commerce and science.

  3. Units of Measurement length = meters (m) mass = kilograms (kg) liquid volume = liters (L) solid volume = cubic centimeters (cm3) temperature = Kelvin (K) time = seconds (s)

  4. Reporting Measurements Report what is known with certainty Add ONE digit of uncertainty (estimation) Davis, Metcalfe, Williams, Castka, Modern Chemistry, 1999, page 46

  5. Davis, Metcalfe, Williams, Castka, Modern Chemistry, 1999, page 46

  6. Measuring Length Zumdahl, Zumdahl, DeCoste, World of Chemistry2002, page 122

  7. 1 2 3 4 5 0 cm 1 2 3 4 5 0 cm Practice Measuring Timberlake, Chemistry 7th Edition, page 7

  8. 1 2 3 4 5 0 cm 1 2 3 4 5 0 cm Practice Measuring 4.5 cm Timberlake, Chemistry 7th Edition, page 7

  9. 1 2 3 4 5 0 cm 1 2 3 4 5 0 cm Practice Measuring 4.5 cm 4.55 cm Timberlake, Chemistry 7th Edition, page 7

  10. 1 kg (1000 g) 1 lb 1 lb 0.20 lb Measuring Mass Christopherson Scales Made in Normal, Illinois USA 1 kg = 2.20 lb

  11. Reading a Triple Beam Balance

  12. Reading a Triple Beam Balance 272.09 grams

  13. Measuring Liquid Volume Graduated cylinder Syringe Volumetric flask Buret Pipet

  14. 100 mL Graduated Cylinder Zumdahl, Zumdahl, DeCoste, World of Chemistry2002, page 119

  15. 10 8 6 Reading a Meniscus 10 mL reading too high line of sight too high proper line of sight reading correct line of sight too low reading too low graduated cylinder

  16. 20 15 mL ? 15.0 mL 10

  17. Measuring Solid Volume

  18. Measuring Solid Volume V = L x W x H

  19. Measuring Solid Volume V = L x W x H V = 7cm x 4cm x 3cm

  20. Measuring Solid Volume V = L x W x H V = 7cm x 4cm x 3cm V = 84 cm3

  21. Water Displacement

  22. How to Read a Thermometer(Celcius) 100 10 10 50 5 5 0 0 0 65 oC 8.5 oC 4.0 oC

  23. Record the Temperature(Celcius) 60oC 6oC 100oC 50oC 5oC 25oC 100oC 80oC 40oC 4oC 20oC 80oC 60oC 30oC 3oC 15oC 60oC 40oC 20oC 2oC 10oC 40oC 20oC 10oC 1oC 5oC 20oC 0oC 0oC 0oC 0oC 0oC 48.0oC 30.0oC 60.0oC 3.0oC 19.0oC A B D C E

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