Snow covers grass
Cows eat all the grass in a field
Flowers bloom and grow
An earthquake causes land to split apart
Lakes freeze over
Woodpeckers create holes in trees
Lack of rain causes a drought
Beavers build a dam
Animals hibernate to stay out of the cold
Gophers create burrows underground
A mudslide destroys plants on a hillside
A tornado knocks over trees
Leaves fall off trees
Animals migrate to go to warmer places
A forest fire starts from a lightning bolt
A thunderstorm causes a flood
