1. Intro Question Answer

2. Copy Down HW

4. E = mc 2 300,000 Km/s ALBERT S 10,000,000 x

5. Why do we use S.N. 1000000000000000000000000000000 00000000000000000000 = 1 x 10 50

6. The parts of S.N. CoefficientCoefficient OperationOperation Base numberBase number ExponentExponent 4.6 x 10 5

7. Writing in S.N If the number is Greater than 1If the number is Greater than 1 Step1. Move the decimal point to the left, so that the new # is greater than the 1 and less than 10.Step1. Move the decimal point to the left, so that the new # is greater than the 1 and less than 10. 527000000. mm

8. S.N. Cont… Step 2. Count the number of decimal points. This equals the positive power of 10 for your exponent.Step 2. Count the number of decimal points. This equals the positive power of 10 for your exponent. Step 3. Write the # in scientific notation.Step 3. Write the # in scientific notation. 527000000mm = 5.27 x 10 8 mm 527000000mm = 5.27 x 10 8 mm Number of decimal place= +8 8 7 6 5 4 3 2 1

9. Practice 1) 6342 cm 2) 7400000 mm 3) 98000mL Standard Notation Scientific Notation

10. If the number is Less than 1If the number is Less than 1 Step 1. Move the decimal point to the right, so that the new # greater than 1 but less than 10.Step 1. Move the decimal point to the right, so that the new # greater than 1 but less than 10..000097 g Writing in S.N

11. S.N. Step 2. Count the number of decimal points. This equals the negative power of 10 for your exponent.Step 2. Count the number of decimal points. This equals the negative power of 10 for your exponent. Step 3. Write the # in scientific notationStep 3. Write the # in scientific notation.000097g = 9.7 x 10 -5 g.000097g = 9.7 x 10 -5 g 1 2 3 4 5 1 2 3 4 5 Number of decimal place = - 5

12. Practice 1).00056 cm 2).0034 mm 3).0000000023 mL Standard Notation Scientific Notation

13. Reverse Practice…

14. Sci. Not. to Standard Not. 1.1.96 x 10 -1 km 2.6.0021 x 10 -7 g 3.4.307090807 x 10 -3 L Standard Notation Scientific Notation

15. Sci. Not. to Standard Not. 1.5.650021 x 10 1 km 2.8.1031 x 10 -5 dm 3.9.309090807 x 10 3 kg 4.-5.340001 x 10 -8 HL 5.-1.340005 x 10 0 mg 1.5.650021 x 10 1 km 2.8.1031 x 10 -5 dm 3.9.309090807 x 10 3 kg 4.-5.340001 x 10 -8 HL 5.-1.340005 x 10 0 mg Standard Notation Scientific Notation