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Lesson 1: Length

Lesson 1: Length. T. Trimpe 2008 http://sciencespot.net/. 1 mile. 1.6 kilometers. 1 yard = 0.9444 meters. 1 inch = 2.54 centimeters. English vs. Metric Units. Which is longer? A. 1 mile or 1 kilometer B. 1 yard or 1 meter C. 1 inch or 1 centimeter.

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Lesson 1: Length

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  1. Lesson 1: Length T. Trimpe 2008 http://sciencespot.net/

  2. 1 mile 1.6 kilometers 1 yard = 0.9444 meters 1 inch = 2.54 centimeters English vs. Metric Units Which is longer? A. 1 mile or 1 kilometer B. 1 yard or 1 meter C. 1 inch or 1 centimeter Left Image: http://webapps.lsa.umich.edu/physics/demolab/controls/imagedemosm.aspx?picid=1167Right Image: http://share.lancealan.com/N800%20ruler.jpg

  3. A. 1 meter or 105 centimeters B. 4 kilometers or 4400 meters C. 12 centimeters or 102 millimeters D. 1200 millimeters or 1 meter km Metric Units m cm mm The basic unit of length in the metric system in the meter and is represented by a lowercase m. • Metric Units • 1 Meter = 0.001 Kilometer (km) or 1km = 1000 meters or 1.0 x 103 m • 1 Meter = 100 Centimeters (cm) or 1cm = 0.01 meters = 1.0 x 10-2m • 1 Meter = 1000 Millimeters (mm) or 1mm = 0.001 m = 1.0 x 10-3 m • 1 Meter = 1,000,000 Micrometers (um) or 1um = 0.000001 m or 1.0 x 10-6 m • 1 Meter = 1,000,000,000 Nanometers (nm) or 1nm = 0.000000001 m = 1.0 x 10-9 m • 1 Meter = 10,000,000,000 Angstom (A) or 1A = 0.0000000001m = 1.0 x 10-10 m Which is larger?

  4. Lesson 2: Mass T. Trimpe 2008 http://sciencespot.net/

  5. 1 pound = 453.6 grams 1 ounce of gold = 28,349.5 milligrams 100 kilogram = 220 pounds English vs. Metric Units Which is larger? 1. 1 Pound or 100 Grams 2. 1 Kilogram or 1 Pound 3. 1 Ounce or 1000 Milligrams

  6. Kilogram Prototype A. 1 kilogram or 1500 grams B. 1200 milligrams or 1 gram C. 12 milligrams or 12 kilograms D. 4 kilograms or 4500 grams kg Metric Units cg mg g Mass refers to the amount of matter in an object. The base unit of mass in the metric system in the kilogram and is represented by kg. Metric Units 1 Gram (g) = 0.001 Kilogram (kg) or 1 kg = 1000g = 1.0 x 103 g 1 Gram (g) = 1000 Milligrams (mg) or 1mg = 0.001g = 1.0 x 10-3 g Which is larger? Kilogram Prototype Image - http://en.wikipedia.org/wiki/Kilogram

  7. Once you have balanced the scale, you add up the amounts on each beam to find the total mass. What would be the mass of the object measured in the picture? ______ + ______ + _______ = ________ g Measuring Mass We will be using triple-beam balances to find the mass of various objects. The objects are placed on the scale and then you move the weights on the beams until you get the lines on the right-side of the scale to match up. 300g 70g 3.35g 373.35 Top Image: http://www.southwestscales.com/Ohaus_Triple_Beam_750-SO.jpgBottom Image: http://www.regentsprep.org/Regents/biology/units/laboratory/graphics/triplebeambalance.jpg

  8. Lesson 3: Volume T. Trimpe 2008 http://sciencespot.net/

  9. 1 fl oz = 29.573 ml 1 12-oz can of soda would equal approximately 355 ml. 1 quart = 0.946 liters 1 gallon = 3.79 liters It would take approximately 3 ¾ 1-liter bottles to equal a gallon. English vs. Metric Units Which is larger? A. 1 liter or 1 gallon B. 1 liter or 1 quart C. 1 milliliter or 1 fluid ounce

  10. kL Metric Units cL mL L Volume is the amount of space an object takes up. The base unit of volume in the metric system in the liter and is represented by L or l. Metric Units 1 liter (L) = 1000 milliliters (mL) or 1mL = 0.001 L = 1.0 x 10-3 L 1 milliliter (mL) = 1 cm3 (or cc) = 1 gram* (when referring to water) Which is larger? A. 1 liter or 1500 milliliters B. 200 milliliters or 1.2 liters C. 12 cm3 or 1.2 milliliters* * When referring to waterLiter Image: http://www.dmturner.org/Teacher/Pictures/liter.gif

  11. What causes the meniscus? A concave meniscus occurs when the molecules of the liquid attract those of the container. The glass attracts the water on the sides. Measuring Volume We will be using graduated cylinders to find the volume of liquids and other objects. Read the measurement based on the bottom of the meniscus or curve. When using a real cylinder, make sure you are eye-level with the level of the water. What is the volume of water in the cylinder? _____mL 43.0 Top Image: http://www.tea.state.tx.us/student.assessment/resources/online/2006/grade8/science/images/20graphicaa.gifBottom Image: http://morrisonlabs.com/meniscus.htm

  12. 9 cm 8 cm 10 cm We can measure the volume of irregular object using water displacement. Amount of H2O with object = ______About of H2O without object = ______Difference = Volume = ______ http://resources.edb.gov.hk/~s1sci/R_S1Science/sp/en/syllabus/unit14/new/testingmain1.htm Measuring Solid Volume We can measure the volume of regular object using the formula length x width x height. 10cm 8cm 9cm 720cm3 _____ X _____ X _____ = _____ 265mL 200mL 65mL

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