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

1. Friday, January 30, 2015
The Earth’s Crust
Sedimentary
Rock

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. 2. Sedimentary Rock – (“Layer’s of
rock”) – “Nature’s Cement”
sedimentary
rock – rock that
is made from
sediments that
usually form in
layers

4. sediments –
loose materials
such as sand,
mud, and
gravel (and
plant and
animal remains
– fossils)

5. These sediments are moved by water,
wind, and gravity and settle on top of
each other in layers (called beds).

6. As these layers of
sediment slowly
pile on top of
each other, they
become tightly
packed or
cemented
together to form
rock

7. Mississippi Delta

9. These beds push
on the layers
below and create
enough pressure
to form
sedimentary rock
– compaction

10. Or, as dripping
water coats the
sediment with
dissolved
minerals and
cements the
pieces together –
cementation.

11. E.g. mudstone (shale), sandstone,
limestone, and conglomerate
Vide
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