1. T. Trimpe 2008 http://sciencespot.net/
Lesson 3: Volume
T. Trimpe

2. Click the image to watch a short video about volume.
Definition kL cL mL L
Volume is the amount of space something takes up, or the amount of space something can contain.
(your locker for example)
Click the image to watch a short video about volume.
* When referring to water Liter Image:

3. metric ruler or meter stick to measure the volume of
Tools
We use a
metric ruler or meter stick
to measure the volume of
regular shaped solid
object using the formula
length x width x height.
10 cm
9 cm
8 cm
_____ X _____ X _____ = _____
10cm
8cm
9cm
720 cm3

4. Tools Cont.
We use graduated cylinders to find the volume of liquids and other irregular shaped objects.
Top Image: Bottom Image:

5. Units kL cL mL L
The base unit of volume for liquids and gases in the metric system in the liter and is represented by L or l (L = liter).
Metric Units
Liter = L
Mililiter = mL
L= 1000 mL
The base unit for the volume of solids is meters cubed or m3
Which is larger?
1 mL = 1 cm3
A. 1 liter or 1500 milliliters
B. 200 milliliters or 1.2 liters
C. 12 cm3 or 1.2 milliliters*
* When referring to water Liter Image:

6. How to Measuring Liquid Volume
Just pour and read!!!
Pour the liquid in a graduated cylinder. Read the measurement based on the bottom of the meniscus or curve. When using a real cylinder, make sure you are eye-level with the level of the water.
What is the volume of water in the cylinder? _____mL
Images created at 43
What causes the meniscus?
A concave meniscus occurs when the molecules of the liquid attract those of the container. The glass attracts the water on the sides.

7. How to Measure Regular Solid Volume
Just measure and multiply!!!
10 cm
We use a metric ruler or meter stick to measure the volume of
regular shaped solid
object using the formula
length x width x height.
_____ X _____ X _____ = _____
10cm
10cm
10cm
1000 cm3

8. How To - Measuring Irregular Solid Volume
Just see how much water it pushes out of the way!!!
With water and a graduated cylinder, we can measure the volume of irregular object
using water displacement.
Volume of H2O with object = ______ (minus) Volume of H2O only = ______ = Objects Volume = ______
260mL
200mL
60mL
Click here for an online activity about volume. Choose Lessons  Volume & Displacement

9. Now take what you've learned and go practice!