1. Scientific classification—grouping living organisms, vertebrates and invertebrates, plant and animal differences 2. Human biology—functions of skeleton and muscles, organs and systems, digestion and respiration basics 3. Material properties—states of matter, reversible and irreversible changes, thermal conductors and insulators 4. Forces and motion—gravity, friction, air resistance, balanced vs. unbalanced forces, measuring force with Newton meters 5. Light and sound—reflection, shadows, how sound travels, pitch and volume, materials that block or transmit light 6. Scientific inquiry—observing, measuring, recording data, fair testing, predicting and drawing conclusions based on evidence