# Earth and Physical Science

## Wednesday, March 15, 2017

## Thursday, March 9, 2017

### 9th grade: Scientific Notation Online Practices

Click on this link to practice scientific notation. Each time you go to the web page, it generates a new quiz.

http://janus.astro.umd.edu/cgi-bin/astro/scinote.pl

Click on this link to verify your answers when you convert from decimal to scientific notation or viceversa:

http://www.rapidtables.com/convert/number/scientific-notation-converter.htm

http://janus.astro.umd.edu/cgi-bin/astro/scinote.pl

Click on this link to verify your answers when you convert from decimal to scientific notation or viceversa:

http://www.rapidtables.com/convert/number/scientific-notation-converter.htm

### 9TH GRADE VIDEO: Convert from Standard to Scientific Notation

**For documents in the English language a point is usual.**

*Decimal marker:***The groups of three digits should be separated only by a (thin) space; neither a point nor a comma should be used.**

*When a number has many digits:*

*To Change from Standard Form to Scientific Notation*
If the point moves to the

If
the point moves to the **, the exponent is***left***.***positive***, the exponent is**

*right***.**

*negative*### 9TH GRADE VIDEO: Convert from Scientific Notation to Standard Form

**For documents in the English language a point is usual.**

*Decimal marker:***The groups of three digits should be separated only by a (thin) space; neither a point nor a comma should be used.**

*When a number has many digits:*

*To Change from Scientific Notation to Standard Form*
If the exponent is

If
the exponent is **, move the point to the***positive***.***right***, move the point to the**

*negative***.**

*left*
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