Cycles

1. Let's review the water cycle. Go to Dr. Art's Guide to Planet Earth and follow the directions for using the three animations to learn about the hydrologic (water) cycle.
2. Answer the following questions in your notebook.
1. Which resevoir is the largest?
2. How much water cycles through it per year?
3. How many years does the average water molecule stay in the ocean?
4. 71,000 cubic kilometers evaporates from land each year. If 1 cubic kilometer is equal to 2.64172052 × 10¹¹ US gallons, how many gallons per year evaporate from land each year?
5. How many gallons per day evaporate each year?
3. What does transpiration have to do with the hydrologic cycle?
4. What other forms of matter cycle through the biosphere?