Transcript Slide 1 - rlsmart.net

Label the diagram of the earth
Why is an increase in the levels of
atmospheric carbon dioxide harmful for
marine life?
Explain the differences in the
amount of carbon dioxide in the early
atmosphere compared to today.
Why do earthquakes and volcanic
eruptions happen?
What parts of the Earth
do we get our minerals
from?
How can the gases in
the air be separated?
What is a tectonic
plate?
What evidence is there
that the plates are moving?
How did the Earth’s early
oceans form?
Explain why the plates
move
Label the pie chart with the names
and percentages of gases to show
the composition of the Earth’s
atmosphere today.
Why is there so little
carbon dioxide in today’s
atmosphere?.
Why was
theory
rejected?
Wegener;s
initially
.
Give 2 pieces of evidence that
support Wegener;s theory.
What did the MillerUrey experiment show?
What was responsible
for the composition of
Earth’s early
atmosphere?
Label the diagram of the earth
Crust
Mantle
Why is an increase in the levels of
atmospheric carbon dioxide harmful for
marine life?
Carbon dioxide dissolves in the oceans,
making them more acidic.
Why do earthquakes and volcanic
eruptions happen?
Sudden movements at plate
boundaries
Core
Atmosphere
What parts of the Earth
do we get our minerals
from?
The crust, the
atmosphere and
the oceans
How can the gases in
the air be separated?
By
fractional
distillation as they
have different boiling
points.
Why was Wegener;s
theory
initially
rejected?
No evidence at time
Theory of land bridge
more popular
Present day animals not
similar on different
continents
What is a tectonic
plate?
Section of the crust
Explain why the plates
move
Radioactive decay in the
core
Releases heat that is
transferred
to
the
mantle
And causes convection
currents
What did the MillerUrey experiment show?
That amino acids could
be formed from the
interaction
of
hydrocarbons
and
ammonia with lightning.
Explain the differences in the
amount of carbon dioxide in the early
atmosphere compared to today.
Plants photosynthesised
Used up carbon dioxide
Produced oxygen
What evidence is there
that the plates are moving?
Sea floor is spreading
How did the Earth’s early
oceans form?
As the earth cooled, the
water vapour in the
atmosphere condensed
Why is there so little
carbon dioxide in today’s
atmosphere?.
Most of it is dissolved in
the oceans or trapped in
sedimentary rocks as
carbonates or fossil fuels.
What was responsible
for the composition of
Earth’s early
atmosphere?
Volcanic eruptions
Label the pie chart with the names
and percentages of gases to show
the composition of the Earth’s
atmosphere today.
Trace
gases
(argon,
water
vapour) –
1%
Oxygenn –
20%
Nitrogen –
80%
Carbon
dioxide –
0.003%
Give 2 pieces of evidence that
support Wegener;s theory.
Land
masses
on
different
continents have coastlines that
fit together
Similar fossils found on different
continents