Transcript Volume: - Bethpage Union Free School District

Volume:
Aim: How is volume measured?
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
Volume of an object with straight
edges….
3. ….is measured with a
metric ruler.
The formula for volume is
4. Volume = Length x width x height
Volume = cm x cm x cm
Volume =
cm3
5. The units for volume of an object measured
with a ruler are cm3 or mm3.
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.
Example #6
Example #7
Example #8
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.
Organize our binders:





Contract / Rules
6 definitions / notes
HW #1 instructions
Measuring length printed notes
Measuring Volume notes ditto
Do Now:

A man gets
into a nearly
full bathtub
and the water
spills over
onto the
floor….Why?
Volume of a liquid…
9. Is measured in a graduated cylinder.
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).
12. Reading the meniscus:


Read at eye level
Read at the bottom of
the curve
13.Practice
How would you find the volume of a
marble with irregular shape?
14. Volume displacement
The DIFFERENCE
between the starting
(before) and ending
volume (after) is the
volume of the object
Practice #15:
Ending volume ___________
Starting volume __________
Volume of object _________
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.