8.1.B.09 - Scientific Notation - Exit Ticket

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Scientific Notation

The approximate total surface area of Earth is 5.1 x 10⁸ km².

All the salt water on Earth has an approximate surface area of 352,000,000 km².

All the freshwater on Earth has an approximate surface area of 9 x 10⁶ km² .

How much of Earth’s surface is covered by water, including both salt and fresh water? Write your answer in scientific notation.

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How much of Earth’s surface is covered by land?Write your answer in scientific notation.

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Approximately how many times greater is the amount of Earth’s surface that is covered by water compared to the amount of Earth’s surface that is covered by land?

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From EngageNY.org of the New York State Education Department. Grade 8 Mathematics Module 1, Topic B, Lesson 9. Internet. Available from https://www.engageny.org/resource/grade-8-mathemat...; accessed 03/Nov/2015.