rock cycle storyboard
Storyboard Szöveg
- This rock first started off as sediment or sand.
- Over the years the sediments compacted and a sedimentary rock formed. But one day the rock was swept into a river and floated out to the ocean.
- The rock sank to the bottom of the ocean. Over the years the rock got closer to the Earth's core. Because of the immense heat and pressure the rock became a metamorphic rock,
- The rock then melted and became magma. When the volcano erupted the lava was propelled out and onto a beach below the mountain.
- After the lava hardened it became a igneous rock.
- Then once again the rock was weathered down into sand.
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