Explore the foundations of biology with Cell Theory and the Discovery of Cells (Unit 2)! This 7th-grade science resource features 7 fill-in-the-blank passages that engage students and reinforce key concepts like the principles of cell theory and pivotal discoveries in cell biology.

Each passage encourages active learning, while the included answer key ensures easy grading and review. Ideal for classwork, homework, or assessments, this no-prep resource supports differentiated instruction and builds students’ understanding of fundamental scientific ideas. Perfect for busy teachers looking for effective, ready-to-use materials!