Bring fall inside - Let the children collect leaves, acorns, and drying flowers.  Put them in the water table or large bin.  The children will continue to explore what makes these things different.

Paint with red and yellow and let the children make their own orange.  Watch their reaction as the colors change.  Give them this opportunity many times using many different ways to mix colors.

Explore a pumpkin.  Cut it open and let the children see and touch what is inside.  Let them try to pull it out of the pumpkin themselves. Give every child some of the insides and encourage them to pick the seeds out of the "goo."  Some children might be a little hesitant but with gentile encouragement may try it.  Cook the pumpkin seeds to show the change from wet to dry.  Pumpkin seeds can be a choking hazard so only preschoolers should eat them.

Animals in the fall - What changes can the children and you observe as animals get ready for winter?  This is an opportunity for children to learn about what animals need and do.

Do you hear the honking of the Canadian geese as they head south?  Can you see them flying in a vee? Are the squirrels and chipmunks gathering acorns and other food?  Do you see monarch butterflies as they fly to Mexico for the summer?