8.1.B.09 - Scientific Notation - Exit Ticket

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3 questions

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.

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

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?

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.