1. Measuring Volume:
Graduated Cylinders
&
Reading a Meniscus

2. Volume:
* The amount of space occupied by an object

3. ALL Graduated Cylinders are NUMBERED using: milliliters
Units:
Base Unit for Volume = Liter
ALL Graduated Cylinders are NUMBERED using: milliliters

4. Units: *ml- most common unit for describing liquids and gases
* cm3 - commonly seen describing solids

5. Meniscus
Upward curve that forms due to the shape of the container in which the liquid is held

6. Meniscus

7. Meniscus
Read the meniscus at eye level
Read the bottom of a meniscus

8. Meniscus
*If you read the meniscus from above eye level, your measurement will be too high
* If you read the meniscus from below eye level, your measurement will be too low

9. Steps to reading a Graduated Cylinder:
Determine the scale of the graduated cylinder .
(The value of each unnumbered line)

10. Meniscus
Look at the Graduated Cylinder and find two numbered lines next to each other (ex: 40 and 30)
Subtract them
Divide your answer by the number of SPACES (not lines) between them.
10 ml ÷ 10 = 1 ml each

11. Steps to reading a Graduated Cylinder:
Add in one more place value for the space between each line – this is your best guess

12. Meniscus
What volume is this meniscus reading? 4 2
.9 ml

13. Meniscus
What is the Scale of this Graduated Cylinder?
1 ml ÷ 10 = 0.1 ml

14. Meniscus
What volume is this meniscus reading?
3.50 ml

15. Precision:
The smaller the cylinder the more precise it reads, therefore you will have more digits after the decimal point

16. Practice Reading the Graduated Cylinder
What is this reading?
36.5 ml

17. Practice Reading the Graduated Cylinder
What is this reading?
47.0 ml

18. Practice Reading the Graduated Cylinder
What is this reading?
61.2 ml

19. Practice Reading the Graduated Cylinder
What is this reading?
18.0 ml