A quick paced activity to get students thinking about the characteristics of life. Just time them and have them scramble to brainstorm all the things they can list in 5 minutes that are characteristics of living things. Then go through and circle the correct answers. I usually have my students document their thoughts and then time them again, in groups, to run up to the smart board and list their brainstorming ideas. This should take maybe 20 minutes of the hour.
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