|How Much Rain?|
Reprinted with permission
from SuperScience Red magazine, October 1993.
Clear jar with straight
sides (A jelly jar works well)
2. Put the rocks against the jar. (Put them so the wind can't blow the jar over.)
3. Make a Guess:
How much rain will fall during the storm?
Make a mark on the jar to show how much.
4. After the storm, check to see how close your guess was.
5. Now hold the ruler against the jar, as shown. How much rain fell? (How many inches, or was it part of an inch?)
Think About It:
How much rain will fall during the next storm? Empty the jar and put it back in the same place. Then wait to catch the next rainstorm!