Estimating Powers of Ten

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Directions

Estimate the answer to each of the following to the nearest power of ten, and write your answer in the space provided. You may not use a calculator.

Group Members:

1. How tall is this room from floor to ceiling in millimeters? 10^______
2. How many people have ever lived? 10^______
3. How old are the pyramids of Egypt in nanoseconds? 10^______
4. How many stars are in our galaxy? 10^______
5. How many microseconds does it take for light to travel from the sun to Pluto? 10^______
6. How many wavelengths of a middle - C note (sound wave) can fit between Los Angeles and New York? 10^______
7. How many bytes of memory are there in all of the computers combined here at PSHS? 10^______
8. How far in meters is it from the earth to the sun? 10^______
9. How many dollar bills would it take to cover the U.S. (one layer of bills)? 10^______
10. How many drops of water would it take to fill this room if it were empty? 10^______

Sum of all the exponents: ______________