Secrets of Lost Empires II—Pharaoh's Obelisk & Easter Island

Student Handout

Weighing In

Can you appreciate the weight of an Egyptian obelisk or Rapa Nui moai? Try and make a few comparisons. If one of the moai weighed 10 tons, how many bikes would weigh the same amount? Choose your own object to compare to the models used in the programs and the real things. Record your calculations and ratios.

• 10-ton (9 metric tonnes) model moai
• 65-ton (58.5 metric tonnes) Rapa Nui moai
• 25-ton (23 metric tonnes) model obelisk
• 500-ton (450 metric tonnes) Egyptian obelisk
• 1,110-ton (999 metric tonnes) unfinished obelisk