Embed Size (px)
Citation preview
Volume is defined as the amount of space
taken up by a three-dimensional object.
What is Volume
We use Length x Width x Height for regular
shaped solids. EX: 6 X 6 X 6 EX: 12 x 5 x 6
How do we calculate it?
How to Measure LENGTH Review
Most metric rulers have lines
indicating centimeters and millimeters.
The centimeter lines are the longer, numbered lines.
The shorter lines are millimeter lines. When you use a metric ruler, line up
the 0-centimeter mark with the end of the object being measured.
How many cm? How many mm?
How many cm? How many mm?
Back to volume..
However, Volume often refers to liquid volume, which is defined as the amount of space taken up by a liquid, which spreads completely to fill its container.
Measuring Liquid Volume
We will use the graduated cylinder.
The reading must be done to the bottom of the meniscus.
Volume of LiquidsReading a Meniscus
Look to the scale
Look to the scale
What if its not a regular shape?
We then have to measure by displacement
Measuring Volume by Displacement
Used for irregular shaped objects
Select a graduated cylinder large enough to put the object in
Add water - at least 10 mL and record accurately
SLOWLY add the
object to be measured.
Read the new level of the water
The water will rise an amount equal to the volume of the object
What not to do
Here’s what the cylinder should look like
1 . Original reading of volume2. Final volume of water3. This will equal the volume of the object
22.5 mL - 17.4 mL = 5.1 mL Therefore, the volume of the object by
displacement is 5.1 mL
Do the math
How to Measure LENGTH
Most metric rulers have lines
indicating centimeters and millimeters.
The centimeter lines are the longer, numbered lines.
The shorter lines are millimeter lines. When you use a metric ruler, line up
the 0-centimeter mark with the end of the object being measured.
How many cm? How many mm?
How many cm? How many mm?
