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Measurement

Measurement. Getting Ready for Science Labs. Measuring Length. Length and distance are measured in millimeters (mm), centimeters (cm), meters (m), or kilometers (km). 1 meter is slightly larger than 1 yard 1 inch equals about 2 1/2 centimeters 1 kilometer equals about 6/10 of a mile .

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Measurement

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  1. Measurement Getting Ready for Science Labs

  2. Measuring Length • Length and distance are measured in millimeters (mm), centimeters (cm), meters (m), or kilometers (km). • 1 meter is slightly larger than 1 yard • 1 inch equals about 2 1/2 centimeters • 1 kilometer equals about 6/10 of a mile

  3. Millimeters (mm) • 1 mm = 0.1 cm • Your ruler is marked in centimeters with the tiny lines between them indicating millimeters. • The thickness of a dime is 1 mm.

  4. Centimeters (cm) • 1 cm = 10 mm • In the science lab, you will be measuring in this unit most often. • Be aware that not all rulers are the same. Look for the “0” before measuring! • The width of a fingernail is about 1 cm.

  5. Meters (m) • 1 m = 100 cm • The height from the floor to your average door handle is just under 1 m. • 400 m is the distance around a track.

  6. Kilometers (km) • 1 km = 1000 m • A little over 2 laps around an outdoor track is about 1 km.

  7. Measuring Volume • Volume is measuring in milliliters (mL) and liters (L). • Always read the measurement from the bottom of the meniscus. • About 30 mL = 1 floz • 1 liter is slightly larger than 1 quart

  8. Milliliters (mL) and Liters (L) 1 mL = about 4 drops of liquid 1 L = half a 2-liter bottle of soda

  9. Measuring Mass • Mass is measured in milligrams (mg), grams (g), and kilograms (kg). • We won’t use milligrams in class, but it can be seen listed on medicine bottles. • About 28 grams equals 1 ounce. • 1 kilogram equals a little over 2 pounds.

  10. Grams (g) • 1 g = 0.001 kg • The mass of 1 paperclip is about equal to 1 gram. • Always make sure before using any scale or balance that you “zero” it out first!

  11. Kilograms (kg) • 1 kg = 1000 g • The mass of about 100 pennies will equal 1 kg.

  12. Measuring Temperature • Temperature is measured in degrees Celsius (°C). • Water freezes at 0°C and at 32°F. • Water boils at 100°C and at 212°F. • Always make sure you are reading on the Celsius side of the thermometer.

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