Materials
- Paper cups Flour
- Flour sieve Paper plates
- Wax paper Jar with lid, optional
What to do
1. You can make collection cups for each child or use one cup for a group of children. Fill the paper cups halfway with flour.
2. Set the paper cups outside in the rain for five minutes.
3. Bring them back inside and let them stand for about five more minutes.
4. Let each child sieve the flour in his cup onto a paper plate.
5. The flour that did not get wet with raindrops will pass right through the sieve. The flour that absorbed raindrops will stay on top of the sieve.
6. Pour the wet pellets of flour on a piece of wax paper. Let them dry and store them in the paper cup or a little jar with a lid.
7. Spend some time looking at the dried pellets. Are they all the same shape?
8. Take samples from different rainy days. Compare pellets from warm days, cold days, snow days and sleety days.
-Dorothee Goldman, Hammondsport, NY
