premise: seasons cause change to the environment sent2: usually plants die or become dormant during the winter sent3: eating food is used to get nutrients by animals sent4: if an animal relies on plants for food then that animal must store enough food to last through the winter sent5: plants are a source of food for animals sent6: an animal requires enough nutrients to survive sent7: a squirrel is a kind of animal sent8: nut is a kind of food sent9: winter is a kind of season.
hypothesis: an example of preparing for seasonal change is an squirrel storing nuts for the winter