1. SCH 3U1 – Scientific Notation Review Scientific notation is used to more clearly express either very large or very small numbers. In scientific notation a number is expressed in the form x X 10 n. x – greater than 1 but less than 10 10 n is a power of 10. 1. To determine the value of x move the decimal place in the number so that only 1 non-zero digit is to the left of the decimal point.

2. 2. To determine the value of the exponent n count the number of places the decimal point moves to the left or right. If the decimal point moves to the right express n as a negative exponent. If the decimal point moves to the left, express the n as a positive exponent. 3. Use the values you have determined for x and n to express the number in the form x X 10 n.

3. Express the following values in scientific notation. 1.0.000000056 g→______________g 2.1200 km →______________m 3.3500000000 ml→______________l 4.0.06 g→______________ kg 5.12000 mg→______________ g

4. Express the following values in scientific notation. 1.0.000000056 g→______________g 2.1200 km →______________km 3.3500000000 ml→______________ml 4.0.06 g→______________g 5.12000 mg→______________ mg