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:fire: Chemistry :fire: - Coggle Diagram

- - - - Characteristics - Layers; Porous; Can have fossils; No crystals; Soft/Crumbly
      - Examples - Shale, Limestone, Sandstone
  - - - Characteristics - Thin/No layers; Non-porous; Twisted/No fossils; Can have crystals; Hard
      - Examples - Slate, Marble, Quartz
  - - - Characteristics - No layers; Non-porous; No fossils; Crystals; Very hard
      - Examples - Basalt, Granite, Obsidian, Pumice, Tuff
    - - Forms when magma cools quickly under the surface. Bigger crystals are made.
    - - Forms when lava cools quickly above the surface. Smaller crystals are made.
- - - - Plant's roots grow in between rocks in the earth and pushes them apart
      - Animals trample over them or bury in them forcing them apart
  - - - Freeze-Thaw method: A crack in a rock is filled with water. The water is frozen which expands the gap. The ice melts and the water evaporates. The process repeats and eventually breaks the rock in half.
      - Wind, Rain or Waves can effect this
      - It is common in deserts
  - - - Carbon dioxide from the air dissolves into rainwater (acid rain). This reacts with the rocks and it damages them speedily.
      - It is common in Limestone as the Calcium Carbonate in it reacts with the acid rain. This forms substances that are washed away in the rain leaving less rock behind.
- - - - Igneous rock
        
        Weathering and Erosion
        
        Sedimentary rock
        
        Heat and Pressure
        
        Metamorphic rock
        
        Melts
        
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        Weathering and Erosion
        
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- - - - Purification of alcohol
  - - - Sand and Water
  - - - Rocks and Water
  - - - Oil and Vinegar
  - - - Colour of pen inks
  - - - Oil and Water