MATTER

MATTER

1. PROPERTIES OF MATERIALS

   • Physical properties
     • Hard or soft
     • Tough or fragile
     • Plastic, elastic or rigid
   • Solubility
     • Soluble
       • Materials that disolve
     • Insoluble
       • Materials that don't dissolve
   • Thermal conductivity
     • Thermal conductors
       • can get hot
     • Thermal insulators
       • don't get hot

2. PROPERTIES OF MATTER

   • Volume
     • amount of space the mass occupies
     • Unit of measurement cm3
   • Mass
     • amount of matter
     • measured in grams & kilograms
   • Density
     • the amount of mass that there is in the volume of an object

3. CHANGES IN MATTER

   • Physical changes
     • Shape
     • Place
     • Temperature
     • State
     • composition doesn't change
     • can be reversed
   • Chemical changes
     • Burn
     • Rust
     • Ferments
     • Rots
     • composition changes
     • new matter is formend
     • can't be reversed

4. MIXTURES

   • Heterogeneous
     • we see the separate substances
   • Homogeneous
     • we can't see the separate substances
     • SOLUTIONS
       • Solute
       • Solvent
   • SEPARATING MIXTURES
     • FIltration
       • to separate insoluble solids
     • Evaporation
       • to separate a soluble
     • Distillation
       • to separate a liquid or two liquids