I walked my 1st grade students through the different features using a Science text book first. Then we worked together to sort through the facts and examples to cut and glue onto our pages. When all done, I took a grade on the mini book and sent them home for the students as a reference for nonfiction text features.
(For some reason I wasn't able to upload this to TPT, but here are the links to Google "Drive" and Teachers Notebook.)
Hope you like it!