This lesson gives students an opportunity to practice several science practices and crosscutting concepts, while also learning about important science tools. Students are prompted to record observations about the form (structure) of the tools, and to make inferences about their function. You will receive two versions of this document: one version has six tools provided for you that students will observe (erlenmeyer flask, dropper, lab tongs, beaker, graduated cylinder, and test tube rack). The other version is blank, so you can assign tools or other objects for to students to record observations on their own. After completing observations and inferences, the second page is set up so students can answer questions about their work. By folding the paper in half, they will create a booklet that has a blank side for taping or glueing into their notebook.