Volume

The amount of space an object takes up. (think of it as how big an object may be).

We measure it with…

Beaker(Kind of Accurate)

GraduatedCylinder(Very Accurate)

Volume Units

• The metric unit for volume is __________.

• 1/1000 of a liter is a _____________.

Liters

milliliter

Millileter(ml)

Cubic Centimeters

(cc)

CentimetersCubed (cm2)= =

Volume of Liquids

• Always use a graduated cylinder to measure.

• Why?

Meniscus• Curve at the top of a liquid in any container

• ALWAYS read from the BOTTOM of the meniscus

Meniscus

A. Each mark is worth…

B. The maximum value the container can measure is…

C. The volume in the container is…

1 mL

50 mL

33 mL

A. Each mark is worth…

B. The maximum value the container can measure is…

C. The volume in the container is…

0.1 mL

10 mL

4.5 or 4.6 mL

A. Each mark is worth…

B. The maximum value the container can measure is…

C. The volume in the container is…

2 mL

100 mL

74 or 76 mL

Volume of Solids

Two types of objects

Regular Objects

Cube shaped, flat faces, precise edges

Irregular objects

Random shapes, not flat sides, not clear

edges

Regular objects

To determine the volume we use:

Volume= length x width x height

L=

W=

H=

Irregular ObjectsTo measure volume we use Water

Displacement.

0.8 ml 10.0 ml

Steps of Water Displacement

1- Measure the amount of water in the gc before placing the object in.

2- Place the irregular object into the water

3-Measure the combined volume by reading the new meniscus.

4-Subtract the original volume from the combined volume to determine the volume of the irregular object