Can you tell the difference between a bug and an insect? Aren't they the exact same thing? Let your learners explore, identify, classify, and document the differences they see in bugs and insects. The activity sheet suggests several introductory discussion ideas and then provides a lab exercise and a related worksheet. Students will sort plastic (or real) bugs based on their physical characteristics. They'll keep track of their data, specifically the number of legs had by each of their crawly creatures.