SIo HW 1

SIo HW 1 - Bahena 1 Anthony Bahena Homework 1 Due: 1/15/10...

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Bahena Anthony Bahena Homework 1 Due: 1/15/10 Sio 10 Problem set 1 1. 1) The first step to the Scientific method is to recognizing the problem, (2) then collecting data, (3) followed by proposing a hypothesis, (4) the last step is testing the hypothesis itself. 2. a) Earth is thought to be 4.57 billion years old since it formed that long ago. b) The Universe we live in is said to begin by the big band 13.7 billion years ago making its estimated age 13.7 billion years. c) The Universe is expanding since humans have observed this by using the Hubble telescope Hubble and the combining it with the big bang theory it was concluded that the Universe is indeed expanding. 3. a) On other sheet of paper. b) Oceanic crust is only 7 to 10 km thick, while continental crust is 35 to 40 km thick. Oceanic crust consists of a layer of basalt and gabbro, while continental crust has a great variety of rock types such as mafic to felsic. The oceanic crust less than 200 million years old while the continental crust is over 200 million years old. c) The outer core of earth is liquid.
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SIo HW 1 - Bahena 1 Anthony Bahena Homework 1 Due: 1/15/10...

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