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# 01 12-2012 warm up – page 97

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### 01 12-2012 warm up – page 97

1. 1. Warm Up – Page 97 <ul><li>Create two circle graphs (pie charts) representing your two charts. You can use the circles at your table to trace. </li></ul><ul><li>Where is the most freshwater on Earth located? </li></ul><ul><li>Is the source referenced in #2 commonly used by people for drinking, water lawns, etc.? Explain. </li></ul><ul><li>Where is most of the Earth’s water found? </li></ul><ul><li>Where is most of the Earth’s usable freshwater found? </li></ul><ul><li>What percent of all of Earth’s water is usable for drinking, etc.? </li></ul><ul><ul><li>Groundwater 4 mL & surface water .7 mL = 4.7mL </li></ul></ul><ul><ul><li>4.7/1000 </li></ul></ul><ul><ul><li>.0047 </li></ul></ul><ul><ul><li>.47% </li></ul></ul>
2. 2. Total Water – make sure you label your types
3. 3. Total Freshwater – make sure you label your types
4. 4. Page 98 <ul><li>What makes water so special? </li></ul><ul><li>Cohesion and Adhesion Lab </li></ul><ul><li>Question: How many drops of water can you place on the surface of a penny before it overflows? </li></ul><ul><li>Hypothesis: </li></ul>
5. 5. Materials and Procedure <ul><li>Materials </li></ul><ul><ul><li>Penny </li></ul></ul><ul><ul><li>Cup of water </li></ul></ul><ul><ul><li>Dropper </li></ul></ul><ul><li>Procedure </li></ul><ul><ul><li>Drop water from the dropper onto a penny, counting each drop. </li></ul></ul><ul><ul><li>Examine the penny from the side after adding just one drop, when the penny is half full, and just before it overflows. </li></ul></ul>
6. 6. Data <ul><li>Penny after one drop: </li></ul><ul><li>Penny when it was half full: </li></ul><ul><li>Penny just before it overflowed: </li></ul>Person Number of Drops Table Average