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# Physical Science Chapter 3 sec1

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### Physical Science Chapter 3 sec1

1. 1. Chapter 3: section 1 Page 76- 83 Date: 9/27/10
2. 2. Warm Up 9/27/10 <ul><li>What weighs more, a pound of feathers or a pound of bricks? Why? </li></ul>
3. 3. Matter <ul><li>Anything that has MASS and takes up space ( VOLUME ) </li></ul>
4. 4. Mass <ul><li>A measure of the amount of matter that makes up an object </li></ul>
5. 5. Mass Vs. Weight <ul><li>Weight is a measure of the gravitational pull on an object. </li></ul><ul><ul><li>Weight can change, mass does not. </li></ul></ul>
6. 6. Volume <ul><li>All matter takes up space, the amount of space the object takes up is its volume. </li></ul>
7. 7. Volume: Liquid <ul><li>Graduated cylinders: measure liquids </li></ul><ul><ul><li>Measure at the </li></ul></ul><ul><ul><li>meniscus </li></ul></ul><ul><ul><li>(lowest point of the </li></ul></ul><ul><ul><li>curved surface) </li></ul></ul>
8. 8. Volume: Solid <ul><li>Calculate regular objects: </li></ul><ul><ul><li>Volume = length x width x height </li></ul></ul><ul><ul><li>Volume = area x height </li></ul></ul><ul><li>OR </li></ul><ul><li>Displaced Volume: </li></ul><ul><ul><li>1. Measure amount of liquid. (Volume 1) </li></ul></ul><ul><ul><li>2. Add object </li></ul></ul><ul><ul><li>3. Record new volume (Volume 2) </li></ul></ul><ul><ul><li>4. Calculate: volume of object = Volume 2 – Volume 1 </li></ul></ul>
9. 9. 1 mL = 1 cm 3 <ul><li>Liquids = Liters </li></ul><ul><li>Solids = meters 3 </li></ul>
10. 10. Homework <ul><li>Done in Notebook: </li></ul><ul><ul><li>Section Review: Page 83 #s 3-7 </li></ul></ul><ul><ul><ul><li>Copy down Questions </li></ul></ul></ul>