Transcript Chapter 5, Lesson 1 - Bloomsburg Area School District

As a class, let’s write down what
we know about Earth. Without
any talking, come to the front of
the room one-by-one and write
what you know about Earth. It
may be a whole new idea, or an
extension of someone else’s
thought.
A physical feature of the land
is called a landform.
The tallest of all landforms are
mountains.
Vast areas of land without
mountains or hills are called
plains.
Valleys and canyons are examples
of landforms shaped by water.
Mounds, called sand dunes,
form where wind blows sand.
The gently sloping edge of a
continent that connects the shore
to the sea is a continental shelf.
Underwater mountains that run
through an ocean form an
ocean ridge.
Features that look like canyons in
the ocean floor are called
trenches.
The name of a
region of land
where water
drains into a river
is a drainage
basin.
We live in the
Susquehanna River
drainage basin.
The movement of a river slows
down as it nears the ocean,
dropping deposits that form
triangle-shaped landforms called
deltas.
In the margin of your paper,
describe what a hard-boiled egg is
like.
Share what you wrote with a
partner.
Scientists have divided the
interior of the Earth into four
main layers.
The outermost layer of Earth is
made up of rock, called the crust.
Below the crust lies a layer of
rock, called the mantle.
Rock in the mantle can move or
slowly flow because of great
pressure and high temperature.
The outer core is below the mantle
and is made mostly of melted
iron.
The sphere of solid material at
Earth’s center is called the inner
core.
Do you think wind, water, or the
Earth itself was the last factor to
affect the landform where you live?
Share your
answer with a
partner.
Since we live in a valley, water
was the last factor to affect it.