1. Physical Properties of Matter The properties of a substance that can be demonstrated without changing the composition of the substance Size (length, volume) Density Mass Color

2. Physical Properties Melting Point Ex. Ice (solid water) starts to melt to liquid water at 0 degrees Celsius Boiling Point Ex. Water boils into steam at 100 degrees Celsius

3. Physical Properties Malleability: can be pounded into a new shape without breaking Metals are malleable

4. Physical Properties Iron is malleable Fe

5. Physical Properties Ductility Can be pulled into long wires without breaking Metals are ductile

6. Physical Properties Crystal Shape Reflects the regular arrangement of atoms in the solid

7. Physical Change A change in the sample of matter that does not result in a NEW substance: Phase Changes Changes in shape Solid liquid gas

8. Chemical Properties of Matter How matter behaves when it changes into a NEW substance. EX. Iron rustssilver tarnishes Milk sourssugar ferments eggs rotleaves turn paper burns

9. Chemical Change Substance changes into a NEW substance. This change is often an irreversible and permanent change in composition

10. Burning

11. Tarnishing

12. Rusting

13. Oxidizing

15. Chemical Reaction Chemical changes mean a chemical reaction has occurred REACTANTS PRODUCTS old substances become new substances Sodium + Chlorine sodium chloride (table salt) Na + CL NaCL