Scientific Notation

1
Scientific Notation

• The distance from the Earth to the North Star is
  about 10,000,000,000,000,000,000 meters.

• Who found it difficult to write the distance from
  the Earth to the North Star?

• What was difficult about it?

• To make it easier to work with very big or small
  numbers involving many zeros we will write these
  numbers in a form called scientific notation.

2
Examples

• Ex 1) Using scientific notation rewrite 1,000.

Ex 2) Using scientific notation rewrite 0.001
Ex 3) Using scientific notation rewrite 25,000,000
Ex 4) Using scientific notation rewrite
0.000000069
3
The Scientific Notation in your own Words.

• In your own words, describe how scientific
  notation works. If you need some help use the
  fill in the blank model provided.

• When you raise 10 to a _________ power then you
  are moving the decimal that many places to the
  _________.
• Likewise, when you raise 10 to a ________ power
  then you are moving the decimal that many places
  to the _________.

4
You and your group do these 3 Examples.

• Rewrite 2,005,000,000 in scientific notation.
• Rewrite in standard notation.
• Rewrite 0.0000064 in scientific notation.

5
Scientific Notation

• How it relates to the Real World.

6
The distance from the Sun to the earth is .

• 93,000,000 miles

• Rewrite this distance in Scientific Notation.

7
Christina Auguilera has dyed her hair
approximately.

• 523,000 times.

• Rewrite this number in Scientific Notation.

8
Number of hits when I googled Tupac was .

• 1,600,000

• Rewrite this number in Scientific Notation.

9
The number of cells in the human brain is.

• 10,000,000,000

• Rewrite this number in Scientific Notation.

10
The thickness of a Toe Nail is .

• .00008

• Rewrite this thickness in Scientific Notation.

11
Problem of the day.

• Use the digits 1,2,3, and 4 and negative sign
  to write a number in scientific notation that is
  close to 0.001.