Rocks 🪨

Igneous Rocks

• Made by magma (molten rock) that cools

  • Characteristics: Crystals, Bubbles, or Shiny, like Glass.

    • Examples: Pumice, Obsidian, Granite

Sedimentary Rocks

• Made by small pieces of rocks that have been broken down, that come together and are squeezed into a new rock.

  • Characteristics: Soft, Maybe Layers, Pieces of Rocks & Shells.

    • Examples:  Limestone, Sandstone, Flint, Chalk

    

Metamorphic Rocks

• Sedimentary or igneous rocks that are transformed/changed by heat and pressure

  • Characteristics: Crystals, Layers

    • Examples: Slate, Marble

    

The Rock Cycle

• When magma cools, it forms igneous rocks.

• When igneous rocks are weathered and eroded, it forms sediments.

• When sediments goes through deposition and cementing, it forms sedimentary rocks.

• Sedimentary rocks under heat and pressure becomes metamorphic rocks.

• When the metamorphic rock melts, it becomes magma.

On the flip side,

• When the igneous rock melts, it becomes magma.

• When the igneous rock is under heat and pressure, it forms metamorphic rock.

• When the metamorphic rock is weathered and eroded, it breaks down into sediments that can eventually form sedimentary rocks.

• When the sedimentary rock is weathered and eroded, it forms sediments once again.