1. Scientific Notation Quick Review

2. Powers of 10 http://micro.magnet.fsu.edu/primer/java/s cienceopticsu/powersof10/http://micro.magnet.fsu.edu/primer/java/s cienceopticsu/powersof10/ http://www.powersof10.com/ Powers of 10 - Google Videos

3. Question 1 Write 4,776 in scientific notation Place the decimal immediately to the right of the left-most non-zero number. This should give you a number between one and ten. 4.776 Count the number of digits between the old and the new decimal point, this gives the power, n of 10 (10 n ). 4 776 X 10 3 Since the decimal is shifted to the left, the exponent is positive. 4.776 x 10 3 3 Digits

4. Question 6 Write 0.0246 in scientific notation Place the decimal immediately to the right of the left-most non-zero number. This should give you a number between one and ten 2.46 Count the number of digits between the old and the new decimal point, this gives the power, n of 10 (10 n ). X 10 -2 Since the decimal is shifted to the right, the exponent is negative. 2.46 x 10 -2 2 Digits 0 02 46

5. Question 14 Write 4.953 x 10 4 in standard form Write the decimal number. 4.953 Move the decimal the number of places specified by the powers of ten: to the right since it is positive. X 10 4 4 9530 Rewrite the number in integer/standard form. 49,530 4 Places

6. Question 17 Write 8.397 x 10 -1 in standard form Write the decimal number. 8.397 Move the decimal the number of places specified by the powers of ten: to the left since it is negative. X 10 -1 0 8 397 Rewrite the number in integer/standard form. 0.8397 1 Place

7. Multiplying and Dividing With Your Calculator 1.Punch the number (the digit number) into your calculator. 2.Push the EE or EXP button. Do NOT use the x (times) button!! 3.Enter the exponent number. Use the +/- button to change its sign. 4.Voila! Treat this number normally in all subsequent calculations. Scientific Calculator Scientific calculator for chemists with notebook http://www.calculator.com/calcs/calc_sci.html

8. Scientific Notation Tutorials http://www.wwnorton.com/college/chemistry/gilbert/tutori als/ch1.htmhttp://www.wwnorton.com/college/chemistry/gilbert/tutori als/ch1.htm (Click on Scientific Notation Link - view tutorial) http://www.visionlearning.com/library/module_viewer.php ?mid=47&l=&c3http://www.visionlearning.com/library/module_viewer.php ?mid=47&l=&c3 (Read Scientific Notation towards the bottom of the page) http://www.wtamu.edu/academic/anns/mps/math/mathla b/col_algebra/col_alg_tut3_scinot.htmhttp://www.wtamu.edu/academic/anns/mps/math/mathla b/col_algebra/col_alg_tut3_scinot.htm