Earth Science Properties of Matter Part 1 For this session you will need to switch courses in Discovery Education. To do that when you open the text book you see a title that states Earth and Space Science. Click switch course. Scroll down to Physical Science. Once in Physical Science course you then will expand all and use the file set for Properties of Matter. Vocabulary: Atom mass gravitation kilogram metric system neutron pure substance State of matter substance volume(matter) weight matter measure barometer condense density liquid gravity volume(sound) hardness Essential Questions: Mass: What is mass? What is the relationship between the mass of an object and gravity? What is the relationship between mass and weight? How does changing the shape of an object affect its mass? Volume: What is volume? How is the volume of a solid measured? How is the volume of a liquid measured? How is the volume of a gas measured? Density: What determines whether one substance will sink or float when it is placed in another substance? What is density and how is the density of a substance calculated? Please watch all the videos under ENGAGE for all the above categories: Density, Volume and Mass Mohs Hardness Scale: