learn about the world.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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What is a mid - ocean ridge? | It is an underwater mountain range.
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How many planets are there? | 8
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Define crust. | The crust is earths outer skin and consists of solid rock.
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How many layers is earth made up of? | 4
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What is an active volcano? | This volcano is still erupting at regular intervals.
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What is a dormant volcano? | This volcano has been quiet for hundreds of years but may errupt again.
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What is an extinct volcano? | The volcano has not erupted in record time.
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Where does most volcanic activity occur? | Plate boundaries.
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Most active volcanic zone | Pacific ring of fire.
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Define tsunami | A huge wave caused by an underwater earthquake.
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The strength of an earthquake is measured by? | A seismograph.
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Define lava. | Molten magma when it reaches earths surface.
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Name three types of rock. | Igneous,Sedimentary, Metamorphic.
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How do rocks differ? | mineral content, Colour Hardness, Texture.
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Name a sedimentary rock. | Limestone.
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Name a metamorphic rock | Marble.
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Name an Igneous rock | Granite. Mourne and Wicklow mountains.
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