Objectives: Scientific Notation What do I know about…scientific notation What do I think is …the reason why we use scientific notation What do I now know…What do I now think is… I.Unit 1 – What is Science? C.Experimental Data 2.Presenting Scientific Data

x A shortcut used to report numbers that are really small or really large. Makes it easier to enter into calculators and calculate.

$25.00 $25,000.00

Which numbers are written in scientific notation? x x

6.02 x 10 23

x Coefficient Coefficient Exponent 6.02 Should always have the decimal after the first non-zero number Should never include trailing zeros or leading zeros The exponent is the number of decimal places the decimal moved.

Which numbers are written in scientific notation? x x

Let’s try it on the white boards.

6.02 x EE 23

(9.45 Multiply Coefficients Add the exponents x )(2.58x )

(9.45 Divide Coefficients Subtract the exponents x )/(2.58x )

Convert the following numbers into scientific notation (round to the 2 nd decimal place)