Let’s Discover Salt Crystals
Sodium Chloride, NaCl
Copper(II) sulphate, CuSO4
Some examples of Crystals
Potassium Chromate(VI), K2CrO4
Potassium dichromate(K2Cr2O7)
Physical Properties of Crystals



  Have fixed geometrical shapes such as a
   cuboid, rhombic or prism
  Have flat sur...
All crystals have fixed geometrical shapes
All crystals have fixed geometrical shapes
All crystals have fixed geometrical shapes
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Crystal

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Crystal

  1. 1. Let’s Discover Salt Crystals
  2. 2. Sodium Chloride, NaCl
  3. 3. Copper(II) sulphate, CuSO4
  4. 4. Some examples of Crystals
  5. 5. Potassium Chromate(VI), K2CrO4
  6. 6. Potassium dichromate(K2Cr2O7)
  7. 7. Physical Properties of Crystals  Have fixed geometrical shapes such as a cuboid, rhombic or prism  Have flat surfaces, straight edges & sharp angles.  Have fixed angles between two neighbouring surfaces  Crystals of the same substance have same shapes but may be in different sizes
  8. 8. All crystals have fixed geometrical shapes
  9. 9. All crystals have fixed geometrical shapes
  10. 10. All crystals have fixed geometrical shapes

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