1. Volume: Aim: How is volume measured?

2. Volume is: 1. The amount of space an object takes up. 2. Examples: – A rock has volume – A Box has volume – The air has volume

3. Volume of an object with straight edges…. 3. ….is measured with a metric ruler.

4. The formula for volume is 4. Volume = Length x width x height Volume = cm x cm x cm Volume = cm 3 5. The units for volume of an object measured with a ruler are cm 3 or mm 3.

5. Rules for volume formula: – Write the formula – Substitute the values – Include units – Round to the nearest.1 cm Do Now…find the volume of the objects in examples 6, 7, and 8 on your worksheet.

6. Example #6

7. Example #7

8. Example #8

9. Please do now:M 9/12/11 Have your binder and supplies out and ready to be checked. Take out the signed page of your contract. Sharpen your 2 new pencils that you will donate. Any HWs owed from last week? Have it out.

10. Organize our binders: Contract / Rules 6 definitions / notes HW #1 instructions Measuring length printed notes Measuring Volume notes ditto

11. Do Now: A man gets into a nearly full bathtub and the water spills over onto the floor….Why?

12. Volume of a liquid… 9. Is measured in a graduated cylinder.

13. Units of measure…. 10. The basic unit of measure of a liquid is the Liter (L). 11. In a graduated cylinder, the unit of volume represented by the marks is called the milliLiter (mL).

14. 12. Reading the meniscus: Read at eye level Read at the bottom of the curve

15. 13.Practice

17. How would you find the volume of a marble with irregular shape?

18. 14. Volume displacement The DIFFERENCE between the starting (before) and ending volume (after) is the volume of the object

19. Practice #15: Ending volume ___________ Starting volume __________ Volume of object _________

20. Let’s Try It! Using the materials in your tray, find the volumes and masses of 3 regularly shaped objects and 1 irregularly shaped object.