Mass is the amount of matter (“stuff”) in an object.

What is mass?

The base unit of mass in the metric system is the gram (g).

Volume is the amount of space an object takes up.

What is volume?

The base unit of volume in the metric system is the liter (L or l).

We will be using graduated cylinders to

find the volume of liquids and other objects.

Measuring Volume

The curve at the surface of a liquid is called a meniscus.

What is the meniscus?

The meniscus of most liquids curves up at the sides, making the center appear lower.

This happens because the molecules of the liquid attract those of the container. The glass attracts the water on the sides.

Reading the meniscus

Read from the bottom of the

curve!

ALWAYS READ AT EYE LEVEL

What is this measurement?

What is the volume of water in each cylinder?

10 cm

9 cm

8 cm

Formula for the volume of a regular object:

Volume = length x width x height_____ X _____ X _____ = _____

Measuring Solid Volume

The volume of a solid object is expressed in

cubic centimeters (cm3) and cubic meters (m3):

10 cm 8 cm 9 cm 720 cm3

We can measure the volume of irregular objects using water

displacement. Amount of H2O with object = ______

About of H2O without object = ______

Difference = Volume = ______

Measuring Solid Volume

280 mL

200 mL

80 cm3