IGNEOUS ROCKS

HOW IGNEOUS ROCKS ARE MADE

• Igneous rocks are formed when volcanoes erupt
• Igneous rocks are formed as lava cools above ground
• The upper 16 km of the earths crust is 95% igneous rock
• Intrusive igneous rocks are formed from magma underground

TYPES OF IGNEOUS ROCKS

• Obsidian
• Dark colored volcanic glass that forms from the very
• Rapid cooling of molten rock material
• It Cools so rapidly that crystals do not form

TYPES OF IGNEOUS ROCKS

• Diorite
• A course grained intrusive igneous rock
• That contains a mixture of feldspar
• Pyroxene hornblende and sometimes quarts

4 THINGS IGNEOUS ROCKS ARE USED FOR

• Granite wished is used for counters and other structures
• Obsidan can be used to make knives and tools
• Pumice is used in building as concrete and cosmetics
• Basalt is used for building of roads and also a hevy duty concrete

WHERE IN THE WORLD DO WE FIND IGNEOUS ROCK

• Igneous rocks are found on the surface in
• Areas of past plutonic intrusions deep underground
• Nearly anywhere or in areas of past or present
• Glaciation where igneous rock has been
• Eroded and deposited

5 THINGS THAT WERE INTRESTING

• Igneous rocks can be used in jewelry and earing
• Igneous rocks can be used as tools and knives also
• Igneous rocks are made from volcanoes and thats rad
• Igneous rocks can be used as materials for building
• Igneous rocks can be used as even headstones so thats cool and interesting