Chilly Fall Weather

Temps were cool this week.  I saw a few snowflakes on Thursday, and on Friday morning we had frost on the lawn.  What was weird was how the walnut tree in the backyard responded - the leaves began dropping heavily on Friday while they were mostly still green.  They had not really turned very yellow yet.  We picked a lot of green tomatoes, and we cooked our red ones to make about 3 quarts of juice.  Katie and I stopped at the riverfront today briefly before doing demos at the museum for National Chemistry Week.