Students really enjoy our snowball fights! For this activity students wrote a question pertaining to vertebrates on a piece of notebook paper, balled it up, and then had a huge "snowball fight". After a minute or so, I randomly called out students' numbers. If their number was called they had to read the question then do their best to answer it. One of the best questions of the day read "what are some mammals that live in the ocean?" We have some great thinkers in my class!