restless earth, 13b
Post on 22-Mar-2016
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Connect: Look at this map and write down what you think the lesson objective of the lesson might be.
Big Picture: How are volcanoes distributed over the
world?• Identify the main parts of a
volcano.•Describe the distribution of
volcanoes.•Explain the types of volcano
that lie on each boundary.
Connect:Connect: Recap of plate Recap of plate
boundaries. boundaries.
1. Name the 3 types of plate boundary
shown at A, B and C
2. What type of plate/s is found at each ? (oceanic or
continental)
Crater Volcanic bombs, ash and gases
Main vent
Parasitic cone
Magma chamber
Cross section of a volcano
Activate: Add the definitions onto your diagram of the volcano.
Tiny pieces of rock which are thrown from the volcano
A small cone that may grow on the side
Molten rock below the volcano
Pipe which carries magma up the volcano
Shape of a volcano formed by lava and ash
Funnel shaped hollow at top of volcano
Molten rock which flows out of the volcano
ANSWERS
How are volcanoes distributed over the world?
How are volcanoes distributed over the world?
• Most volcanoes lie along plate boundaries.
• Volcanoes mainly occur on destructive plate boundaries (this also includes super volcanoes.)
• Remember that some volcanoes do not appear on either boundary!
How are super volcanoes different to shield or composite volcanoes?
• Super volcanoes are flat and surrounded by mountains.
• Shield and composite volcanoes are taller and take more of a cone shape.
• Do you remember the difference between shield and composite?
• Normal volcanoes cannot usually be identified from space.
• Super volcanoes are very large volcanoes that they can only be identified from space/air.
• Normal volcanoes eject millions of tones of ash into the air.
• Super volcanoes eject billions of tones of ash into the air.
• Normal volcanoes can cover ash over an entire state.
• Super volcanoes can cover ash almost an entire country.
Other differences include…
Demonstrate: Plotting volcanic activity onto a map
• Using your world maps and white board pen. Identify the Using your world maps and white board pen. Identify the country in which these volcanoes are found.country in which these volcanoes are found.
• Write the initials on your map.Write the initials on your map.1. Merapi Volcano, Java, Indonesia.2. Rabaul Caldera, Papua New Guinea3. Pinatubo Volcano, Central Luzon, Philippines4. Bezymianny Volcano, Kamchatka, Russia5. Kilauea Volcano, Hawaii6. Ruapehu, New Zealand7. Mt Spurr, Alaska8. Popocatepetl, Mexico9. Santa María Volcano, Guatemala10.Arenal Volcano, Costa Rica11.Volcano Rincon de la Vieja, Costa Rica12.Stromboli Volcano, Italy13.Hekla Volcano, Iceland14.Mount Erebus, Antarctica
Reflect: Using the information you have learnt today watch the clip and write down a documentary voice over to describe what is happening…
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