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Friday, January 30, 2015
The Earth’s Crust
Sedimentary
Rock
Activity:
Shake your bottle and
observe.
Draw a picture showing the
layers of sediment that
formed.
Which sediments ended ...
2. Sedimentary Rock – (“Layer’s of
rock”) – “Nature’s Cement”
sedimentary
rock – rock that
is made from
sediments that
usu...
sediments –
loose materials
such as sand,
mud, and
gravel (and
plant and
animal remains
– fossils)
These sediments are moved by water,
wind, and gravity and settle on top of
each other in layers (called beds).
As these layers of
sediment slowly
pile on top of
each other, they
become tightly
packed or
cemented
together to form
rock
Mississippi Delta
These beds push
on the layers
below and create
enough pressure
to form
sedimentary rock
– compaction
Or, as dripping
water coats the
sediment with
dissolved
minerals and
cements the
pieces together –
cementation.
E.g. mudstone (shale), sandstone,
limestone, and conglomerate
Vide
o
Sedimentary rock
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Sedimentary rock

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This was created to meet the curriculum outcomes in New Brunswick's Grade 7 Science Earth's Crust Unit.

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Transcript of "Sedimentary rock"

  1. 1. Friday, January 30, 2015 The Earth’s Crust Sedimentary Rock
  2. 2. Activity: Shake your bottle and observe. Draw a picture showing the layers of sediment that formed. Which sediments ended up on the bottom? Why? Which sediments ended up on the top? Why? What might happen to the sediments if the water in the jar completely evaporated?
  3. 3. 2. Sedimentary Rock – (“Layer’s of rock”) – “Nature’s Cement” sedimentary rock – rock that is made from sediments that usually form in layers
  4. 4. sediments – loose materials such as sand, mud, and gravel (and plant and animal remains – fossils)
  5. 5. These sediments are moved by water, wind, and gravity and settle on top of each other in layers (called beds).
  6. 6. As these layers of sediment slowly pile on top of each other, they become tightly packed or cemented together to form rock
  7. 7. Mississippi Delta
  8. 8. These beds push on the layers below and create enough pressure to form sedimentary rock – compaction
  9. 9. Or, as dripping water coats the sediment with dissolved minerals and cements the pieces together – cementation.
  10. 10. E.g. mudstone (shale), sandstone, limestone, and conglomerate Vide o
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