1. 8th Grade Math Common Core 8.EE.A.4
Scientific Notation
8th Grade Math
Common Core 8.EE.A.4

2. Scientific Notation
Years ago scientist developed a short-cut to writing really BIG numbers -and-
really small numbers.
It’s called…… Scientific Notation!

3. Scientific Notation – Reading Problem
The Hubble Space Telescope orbits 353 miles above the surface of the Earth.
NASA’S Hubble Telescope took pictures of a supernova that is 169,000 light years away.
Write this number in scientific notation.
 169,000 = x

4. What is a Supernova?
Among the billions of stars in a galaxy called the Whirlpool Galaxy, a massive star suddenly ends its life in a brilliant flash of light.
NASA's Hubble Space Telescope snapped images of the exploding star, 12 days after its discovery by an amateur astronomer.
The exploding star was given the name :
supernova 2005cs.
Those photos were compared with Hubble images of the same region before the supernova exploded in the hopes of pinpointing the star that exploded.

5. Whirlpool Galaxy
Follow the handle of the Big Dipper away from the dipper's bowl, until you get to the handle's last bright star. Then, just slide your telescope a little south and east and you'll likely find Whirlpool galaxy.
See area M51.

6. The Hubble Space Telescope orbits 353 miles (569 km) above the surface of the Earth.
Scientific Notation

7. A Supernova Explodes in the Whirlpool Galaxy

8. Let’s look at our word problem….
The Hubble Space Telescope orbits 353 miles above the surface of the Earth.
NASA’S Hubble Telescope took pictures of a supernova that is 169,000 light years away.
Write this number in scientific notation.

9. Rules for Scientific Notation
A number in scientific notation is written as a product of two numbers!
The first number must be greater than or equal to 1, but less than 10.
The second number has to be a power of 10.
Standard Form Scientific Notation
169, = x
1st Nbr.
2st Nbr.

10. So why learn about Scientific Notation?
There are some occupations that use numbers that are very, very big or very, very small. Scientific Notation gives these professionals a shortcut way of writing these numbers!
Large Numbers
Small numbers

11. The End