This worksheet is a no-prep, easy-to-use activity that works great for sub plans, absent students, or e-learning days. Students select four microscopic images from an online cell library, add them to the worksheet, and record their observations. This activity reinforces accurate scientific observations and supports NGSS SEPs like Analyzing and Interpreting Data and Asking Questions and Defining Problems. This resource comes as an editable Word document, so you can customize instructions or formatting to fit your classroom needs!