Grade 9 - Scientific Notation

Mar. 2/09
Scientific Notation is an easy way to express either very large or very small numbers. Scientific notation is used frequently in both math and science.
Rules:
To write a number in scientific notation, write as a product of:
- a number greater then -10 and less then -1 or greater than 1 and less then 10.
- a power of 10

Ex. 1 Convert the numerals to scientific notation
a) 120 000 000 000
= 1.2 x 10^11
b) 0.000 000 000 000 000 000 000 001 67
= 1.67 x 10^-24

Ex. 2
The mass of Earth is 6.0 x 10^24 kg.
a) The mass of the sun is 3.3 x 10^5 times bigger. How big is teh sun?
6.0 x 10^24 x 3.3 x 10^5
= 1.98 x 10^30

Remember to use the special button on your calculator; ie. EXP, or EE.
pg. 225-227 #1,2,3,4acegik,7,8,9(explain one in detail how you put it in the calculator then do the rest), 10ab.