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How Easter Islanders put 13-ton hats on statues

How Easter Islanders put 13-ton hats on statues

Assessment

Interactive Video

Science

11th Grade - University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video explores how stone hats were placed on Moai statues using ramps. Scientists created 3D models to analyze the stone cylinders and developed a hypothesis that the hats were rolled up ramps using a technique called Par Buckling. Calculations determined the ramp length and number of workers needed. A team of 15 could position a hat using a ramp 75 to 328 feet long with a 5 to 20-degree incline.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What was the height of the Moai statues mentioned in the text?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What hypothesis did the scientists develop regarding the movement of the hats?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What were the dimensions of the ramp used to move the hats?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What incline range was mentioned for the ramps used in the process?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

How many people were required to maneuver a bacao into position?

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