1. Exploration: Entering the World of Secondary Science
2. Cell: The Building Block of Life
3. Tissues in Action
4. Describing Motion Around Us
5. Exploring Mixtures and their Separation
6. How Forces Affect Motion
7. Work, Energy, and Simple Machines
8. Journey Inside the Atom
9. Atomic Foundations of Matter
10. Sound Waves: Characteristics and Applications
11. Reproduction: How Life Continues
12. Patterns in Life: Diversity and Classifcation
13. Earth as a System: Energy, Matter, and Life