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Do now: How could you find the volume of a rock?

Do now: How could you find the volume of a rock?. October 10, 2013 Left side page . Water Displacement. A procedure to find the volume of an irregularly shaped object. 1. Fill a graduated cylinder with water, about half way. 2. Gently slide the object into the graduated cylinder.

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Do now: How could you find the volume of a rock?

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  1. Do now: How could you find the volume of a rock? October 10, 2013 Left side page

  2. Water Displacement • A procedure to find the volume of an irregularly shaped object. • 1. Fill a graduated cylinder with water, about half way. • 2. Gently slide the object into the graduated cylinder. • 3. Observe the final volume of the graduated cylinder and subtract from the initial volume.

  3. Measuring Matter • Mass – describes the amount of matter in an object. Mass will be measured with an electronic scale. • Volume – describes the amount of space an object occupies. The units of volume most commonly used cubic centimeters and milliliters. • 1cm3 = 1mL

  4. Mean – the average of a set of numbers. Total all of the numbers and divide by the number of sets. Median – the middle number of a set, put all of the numbers in numerical order and find the number in the middle. 1, 2, 5, 8, 10, 12, 13 Mode – this is the most frequent number in a set of data 3, 4, 4, 5, 6

  5. What can you tell me about this bar graph?

  6. How about this Histogram?

  7. Do Now:Illustrate the steps you need to take to find the volume of an irregular solid October 15, 2013Left Side Page Use colored pencils!

  8. Do Now: • Observe the graduated cylinder on my desk. • Write three observations and one inference • Left Side Page October 15, 2013

  9. Density Notes • Density - The amount of matter in a given volume • You cannot measure density directly • Formula for density: D=M/V • Formula for volume: V= M/D • Formula for mass: M = VxD • Ending unit for density: g/cm3

  10. Formula Card:

  11. Characteristic Property • The density of a substance is a characteristic of that substance. Therefore, density is a property that can be used to help identify a substance.

  12. Do Now: • 1. If a block of copper measures 2.00cm x 4.00cm x 5.00cm and weighs 356 grams, what is its density? • 2. A student pipettes 5.00mL of ethanol alcohol into a flask weighing 15.25grams. She finds that the mass of the flask plus the ethanol = 19.17grams. Calculate the density of the ethanol alcohol.

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