Ohaus PRIMER BALANCE Manual - Manual (Page 4)

4
does it balance ?
OBJECTIVE :
To make accurate comparisons of the mass of two
similar objects.
MATERIALS: Primer Balance
Pairs of objects that have similiar but unequal
mass.
For example:
2 rubber erasers (used)
2 oranges
2 crayons (used) 2 pebbles
2 pencils (used)
2 potatoes
PROCEDURE: 1. Check the reading on the front of the balance to
see if it is in alignment. If it is out of balance,
have your teacher show you how to adjust it.
2. Use a marking pen to mark each pair of
objects. (Mark one object "A" and the other
"B".) Weigh each pair of objects. List them and
record the results by placing an "A" or "B" in the
proper column in the following chart.
Objects Heaviest Lightest