This is my Calendar Art
For our calendar art we had to split the paper into 5 parts then do little sections inside them. We coloured it with oil pastels and smudged it with a paper towel132ws
Obsidian
Obsidian is an Igneous that is formed when molten lava is suddenly cooled when it flows into water. Obsidian is a naturally occurring volcanic glass formed as an outstanding igneous rock.
Facts: Obsidian can only form near active volcanoes
When obsidian breaks, the fractures are very sharp which is why it was used for tools
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Pumice
Pumice is a Igneous rock.The holes are vesicles that are actually gas bubbles trapped inside during rapid cooling in the molten magma. The materials cool so fast that the molecule cant get into a crystal form, so pumice is volcanic glass known as a mineral
Facts: Pumice is short for Pumicite
The size of pumice can range from tiny dust particles to pumice pieces the size of a house.
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Rhyolite
Rhyolite is a igneous rock formed
How It Is Formed: Formation of Rhyolite usually is in continental margin volcanic eruptions where the granitic magma reaches the surface.
Facts: Due to the release of Huge amounts of trapped gases, the eruptions of Rhyolite may be highly explosive.
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Positive
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Negative
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Farming
Heating
Horticulture
Metals/Stones/Rocks
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Destruction
Damage
Pollution
Harmful
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