Answer:
I occur twice in eternity. And I'm always within sight.
It flavors your food and divides the year up. What is it?
Power enough to smash ships and crush roofs. Yet it still must fear the sun.
You can tumble in it, Roll in it, Burn it, Animals eat it, Used to cover floors, Still used beyond stall doors. Freshens whatever it is placed on, Absorbs whatever is poured into it. What is it?
It comes from crystal and melts to a treat. Add it to your tea to make it sweet. What is it?
Lynn likes grapes but not potatoes. She likes squash but not lettuce, and she likes peas but not onions. Following the same rule, will she like pumpkins or apples?