Lesson Aims

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(No Transcript)
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• Here are 4 sedimentary rocks
• Sandstone

Lesson Aims How sedimentary rocks are made. Why
fossils are in sedimentary rocks.
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Cut out the five pictures. Stick them into your
book in the same order. Match them up with these
statements. Acid rain makes a crack in the
rock. Bits of the rock fall off. The ice
expands. Water in the crack freezes. The rock is
cracked. Write the statements beside the pictures.
Lesson Aims How sedimentary rocks are made. Why
fossils are in sedimentary rocks.
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Lesson Aims How sedimentary rocks are made. Why
fossils are in sedimentary rocks.
We left the plaster to go hard. We put some
plaster into the mould. We made a mould out of
plasticine. We pushed a shell into the
plasticine. We mixed up some plaster.
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Sedimentary rocks When old rocks are the
bits are to other places. When the bits
they form Layers which are into
new rock.
Lesson Aims How sedimentary rocks are made. Why
fossils are in sedimentary rocks
weathered
transported
settle
squashed
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Crystals in igneous rocks Cut out the two crystal
pictures. Stick them in your book. Write these
descriptions beside the correct picture. These
crystals are big. They were made when the rock
cooled slowly. These crystals are small. They
were made when the rock cooled quickly.
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molten
Igneous rock starts as Rock. are
made when it cools. If it cools , they
will be big. There are never in igneous
rock because they get
crystals
slowly
fossils
melted
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Sedimentary rocks like sandstone and limestone
are soft rocks. They are made by bits of
weathered rocks settling in layers. They are made
of grains. Sedimentary rocks are the type most
likely to have fossils.
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Igneous rocks like granite very hard rocks. They
are made of crystals that formed as molten lava
cooled. Igneous rocks never have fossils.
Metamorphic rocks like slate and marble are also
very hard rocks. They are made of crystals that
formed as other rocks were changed by heat and
pressure. Metamorphic rocks dont often have
fossils.
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Sandstone and granite are different rocks
because I think that the sandstone changed mass
the most because
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Metamorphic rocks like slate and marble are very
hard rocks. They are made of crystals that formed
as other rocks were changed by heat and
pressure. Metamorphic rocks dont often have
fossils.
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When new rocks are made, they start to
down into small pieces. This is called
. This is done by , and
Lesson Aims How sedimentary rocks are made. Why
fossils are in sedimentary rocks.
break
weathering
wind
water
ice