Ohaus PRIMER BALANCE Manual - Manual (Page 9)

9
heavy water
OBJECTIVE : To use the mass of a liquid to make comparisons of
mass with solid materials.
MATERIALS: Primer Balance
Metric measuring cups
Plastic cups
A collection of solid materials such as:
Potato
Apple Large pebble
Coffee mug Orange
Banana A baseball
Math book
PROCEDURE: 1. Place a cup (250 ml) of water in one of the
balance pans.
2. Before comparing the mass of each object in
your collection with the water, record your
guess whether the object will have a mass that
is "less than", "greater than", or "the same as"
the water.
3. Measure and record your findings. Use the
following chart.
Actual Mass of the Object:
(check the correct column)
Your Guess
(Less Than, or
The Same)
Object
Less Than
the Water Same as
the Water More than
the Water