Help students master atomic structure, atomic number, mass number, isotopes and atomic symbols with this engaging 38-page Science Workbook for ages 11–14. This ready-to-use resource combines clear lesson notes, guided practice, challenging questions, answer keys and a final chapter review to help students build confidence step by step. What’s included: ✓ Lesson Notes ✓ Science Activities ✓ Practice Worksheets ✓ Worked Examples ✓ Answer Key ✓ Final Chapter Review ✓ Multiple Choice Questions ✓ True/False Questions ✓ Challenge Questions Topics covered: • Structure of the Atom • Protons, Neutrons and Electrons • Atomic Number • Mass Number • Calculating the Number of Neutrons • Isotopes • Atomic Symbols • Comparing Atoms and Isotopes Perfect for: • Science lessons • Middle school / lower secondary science • Classroom practice • Homework • Revision and assessment • Independent student work Age range: 11–14