In 'Macbeth' what were the witches involvement with the weather, animals, and people?

i need some help :/


i understand their involvement with the people,but i cannot figure out what to put as their involvement with weather and animals for my school report...i admit i am not very good at understanding what shakespear writes, i find it difficult, but i still cannot seem to find exactly where in the book (which scene, act) its states the witches involvement with animals and weather.


i have not found any hep on google or yahoo :(


please help! thank you!|||Have you read the play at all?





Act 1 Scene 1 opening words





When shall we three meet again? In thunder. lightning or in rain?





end of scene





Fair is foul, and foul is fair; Hover through the fog and filthy air.





Act 1 Scene 3 opening words





Where hast thou been sister?





Killing swine.





see also Act 4 Scene 1 with all the animal parts in the cauldron