Name______________________- Period_______________________  Date____________________________
Find the Mass of the Following Objects. 
Object Mass
1 nail .
1 marble .
2 marbles .
1 rubber stopper .
Your pencil .
A wadded up sheet of paper .
1 penny .
2 pennies .
3 pennies .
Mass is the amount of material in an object or substance. The base Metric or SI unit for mass is the gram. The tool used to find mass is the balance or balance scale. The mass of an object does not change with a change in gravity. If the mass, changes most likely the size and definitely the or amount, of the substance changes.

 

Instructions
1. Make sure that your balance is level while it is empty. If it is not, use the little white slide weights on the arms to get it balanced. If you have a scale that is different you will need to locate the dial  that tweaks the balance it will be located on the balances body.

2. Place the object to be measured  into one side of balance. On the opposite side use the standard masses to make your scale balance. Do not mix the standard masses with your object to be measured. Keep the masses on one side and objects on the other.
(Each person in your assigned group of 4 or 5 should take a turn measuring one of these items. The person to go first is the one closest to the front door. The turn should go next to the student's right. All students should write down the findings with units. In the event that this procedure cannot be followed  the student will become a part of the instructor's group and will experience this activity as a demonstration.)

3. Calculate the mass of the measured object by adding up the values of the standard masses needed to make the scale balance. Always write the units!!!!!