Science and Measurement Chapter 1.3 The Foundations of Physical Science

Unit Conversion Why convert? Suppose you have a jar full of pennies and you count out 1565 pennies. You have 1565 cents-- but wouldn’t you rather know the dollar amount? You just move the decimal over two places to the left. It is $15.65 but it represents the same amount of money

Converting SI Units SI conversion is just as easy as changing pennies into dollars There is a saying that will help you remember an easy way to convert within the metric system King Henry Drinks Up Delicious Chocolate Milk

Let’s Practice Convert 650 millimeters to meters Convert 142 kilometers to meters Convert 754,000 centimeters to kilometers

SI Estimation Challenge Which is realistic Width of a postage stamp 1m, 15cm, or 20mm Thickness of a CD 0.1m, 0.01m or 0.001m Height of a bus 152.4mm, 20m, or 250cm Length of a worm 25.4mm. 25.4cm, or 0.254m Length of a football field 91.44m, 200m, 1km

Converting Between English and SI Units Here are some handy conversion factors 2.54 cm = 1 inch 1.609 km = 1 mile 30.48 cm = 1 foot 39.37 in = 1 meter