#### Transcript of Introduction to Scientific Notation

width of 1 grain of sand: .00005 m

SCIENTIFIC NOTATION

Scientific notation is like shorthand for writing numbers. Scientists use it when they want to write numbers that are either...

**VERY BIG**

Diameter of the sun: 1,391,000,000 meters

**Or...**

very small

About Scientific Notation

When you have numbers with a whole lot of zeros, you can save time (and space!) by using scientific notation. When you use scientific notation you can simplify all those zeros by writing the number as the product of a number and a power of 10.

Writing Numbers in Scientific Notation

What is Scientific Notation?

The diameter of the sun is 1,391,000,000 meters.

That's 1.391 x 10^9 in scientific notation!

1) N is called the coefficient. It is always a number between 1 and 10 (but not equal to 10).

2) a is always an integer. Positive exponents are for "larger" numbers, negative exponents are for "smaller" numbers!

How to Write Numbers in Scientific Notation

Write in scientific notation.

YOU TRY IT!

124,000

1,350,000

.003

.00046

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