1. AS A VOLCANO ERUPTS WHAT MAKES CERTAIN LANDFORMS?? VOLCANIC LANDFORMS https://www.youtube.c om/watch?v=wI1wlXJz 1lk

2. Billy Nye Volcanoes https://www.youtube.com/watch?v=IbDZBVLbFJ4

3. FROM LAVA AND ASH

4. SHIELD VOLCANO Lava flows out gradually building a wide gently sloping mountain Gentle eruptions https://www.yo utube.com/wa tch?v=HdhARb 2PGqA Start at 1:11

5. CINDER CONE VOLCANO When lava has a high viscosity it produces ash, cinder and bombs which all build up around the vent in a steep, cone-shaped hill (or small mountain) https://www.youtube.com/watch?v=HdhARb2PGq A https://www.youtube.com/watch?v=HdhARb2PGq A

6. FORMED BY LAVA AND ASH COMPOSITE VOLCANO Tall, cone shaded mountains in which layers of lava alternate with layers of ash Most violent eruptions https://www.youtube.com/watch?v=-H_HZVY1tT4 https:// www.yo utube.c om/wat ch?v=H dhARb2 PGqA Start 1:39

7. FORMED BY LAVA AND ASH LAVA PLATEAUS High, level Ares that have been built up over time from lava seeping out of several cracks then traveling a distance before cooling and solidifying Formed from fissure volcanoes

8. FORMED BY LAVA AND ASH CALDERA https://www.youtube.com/watch?v=BBGmXsZHInw Huge hole left by the collapse of a volcanic mountain Composite volcanoes

9. FROM MAGMA

10. VOLCANIC NECKS Forms when magma hardens in a volcano's pipe softer rock and round the pipe erodes away exposing hard rock.

11. DIKES Formed when magma forces itself across rock layers and hardens Made from composite volcanoes Vertical layers https://www.youtube.com/watch?v=6loGYTCBVqo

12. SILL Formed when magma forces itself across rock layers and hardens Horizontal layers

13. BATHOLITHS Mass or rock formed when a large body of magma cools inside the crust “Half Dome”

14. DOME MOUNTAIN Forms when an uplift pushed a batholith or smaller body of hardened magma toward the surface.

15. GEOTHERMAL ACTIVITY Magma, a few km under earths surface, heats underground water and forms …. Hot Springs Geysers

16. HOT SPRINGS Groundwater is heated by a nearby body of magma or hot rock and eventually rises to the surface to collect in a natural pond. Can also heat streams

17. GEYSER Fountain of water and steam that erupts from the ground when a buildup of pressure is released https://www.youtube.com/watch?v=_gyhvqbIaOE