1. Why is the metric system preferred worldwide to the U.S. system of measurement?

2. List a very large and a very small measurement that could be usefully written in scientific notation.

3. When using conversion factors, can units be treated like other algebraic quantities?

4. What is the meaning of cross-sectional area?

5. Can a brick have more than one cross-sectional area?

6. What is the fundamental metric unit for land area?

7. Which is larger, a litre or a quart?