Plate Tectonics- Continental Drift
Goals: 1. Describe the hypothesis
of continental drift.
2. Identify evidence
supporting continental
drift.
Continent- one of the six or seven
great divisions of land on the
globe
Continental drift- hypothesis that
continents have moved slowly to
their current locations; (insert
sample sentence)
Pangaea- large, ancient landmass
that was composed of all of the
continents joined together; (insert
sample sentence)
Controversy- argument or debate
Wegner- thought the edges of the
continents looked as though they
could fit together like pieces of a
puzzle. He hypothesized that they
actually had all fit together at
one time to form a single continent
that later broke apart. He called
the continent Pangaea because the
word means “all land.”
Evidence for
Continental Drift
Fossils
Rock
Climate
Seafloor- portion of Earth’s crust
that lies beneath ocean waters;
(*insert sample sentence)
Seafloor Spreading-theory that new
seafloor forms when lava erupts at
a mid-ocean ridge; (*insert sample
sentence)
Interval-a space of time between
events