Lab01 - History of the Universe Name : Lab#: 1 Title: How...

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History of the Universe Name : Lab#: 1 Title: How to calculate the mass of the Earth Problem: The aim of this lab is to construct a model to estimate the mass of the
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History of the Universe Earth. In this experiment Eratosthenes method, which was developed over 2000 years ago will be followed. Summary of procedures and observations: In order to calculate the mass of the Earth a scientific model was developed. In this model the Earth is made up of only one kind of rock and has a spherical shape, which in reality is not the case. 1. First of all a rock sample, which represents the material the Earth is made up of, was chosen. 2. The mass of the rock was recorded with the help of a balance 3. The volume of the rock was measured by placing the rock in a beaker containing water. The amount of water that was displaced in that process was recorded as the volume of the rock sample. 4. Eratosthenes observed that a shadow of 7.2˚ casts when sunlight reached the bottom of a deep pit in Syene. This observation together with the distance between Alexandria and Syene can be used to calculate the circumference of the Earth. One simply figured out in how many 7.2˚ angle slices the Earth can be divided up into. Afterwards the distance between Alexandria and Syene was multiplied by the number of slices. 5.
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Lab01 - History of the Universe Name : Lab#: 1 Title: How...

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