Rock Balancing Act

• Write the name of each rock.
• Place in the balance scale.
• Add enough cubes to balance the scale.
• Remove the cubes and count them.
• Record the weight of each rock in cubes.
• Use the data to make a graph using Excel.

 

Rocks	Cubes
sandstone	26
limestone	19
marble	43

Answer the following questions using your data.

• Which rock is the heaviest?
• Which rock is the lightest?
• What was the average weight of all the rocks combined?


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