A simile is a comparison between two different things using the word "like" or "as." Common Core State Standards require students to be able to identify and analyze similes and other figurative language techniques at around the third or fourth grade level. Many of the simile worksheets that I've found online are very basic and intended for students at the early levels of figurative language study. My worksheets are a bit more rigorous in the language that is used (which draws from classic and modern poetry) as well as the performance task required: in these worksheets students are to identify the two things being compared in each simile and then explain what the speaker was attempting to express in literal language. This forces students to truly consider the meaning of the simile in addition to identifying it. If you find that the language used in these worksheets is too challenging for your students, feel free to download the .rtf files and modify them for your classroom.