Make it easy! TRUE Box Physical Science bundle units 1-8 were written by a master educator! There are 8 units of instruction, consumables, planning, activities, and answer keys in this bundle! We made it easy!!TRUE Box makes it easy....Purchase, review, supplement or not, download and teach! UNIT 1:Matter and Physical PropertiesWeek 1: Define MatterWeek 2: Physical Properties of MatterWeek 3: States of Matter: Solid, Liquid, GasWeek 4: Measuring MatterUNIT 2:Atoms, Elements, and MoleculesWeek