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SCIPAD - BIG IDEAS - BOOK 2
EARTH SYSTEMS
4. Label the diagram of the Earth by identifying the various layers.
5. The Earth’s crust is made up of 12 major plates that are floating and moving about on the
mantle.
(a) Outline what causes these plates to move.
(b) Name three natural phenomena that can be caused by the movement of these
plates.
(i)
(ii)
(iii)
(c) Name the scientist who proposed the ‘Theory of Plate Tectonics’?
(d) Name the two tectonic plates New Zealand sits on top of.
(e) “In the North Island, one of the plates is subducting under the other”. Explain what
this statement means.
(f) Name two geological features (one on land and one in the ocean) that occur as
a result of subduction.
(i)
(ii)
6. Compare and contrast the following volcanic terms.
(a) Active and dormant volcanoes are similar in that they
however,
.
