Chapter 5 Lesson 1 Earth Pages 104-109

Chalk Talk 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.

We live in the Susquehanna River drainage basin. 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.

How a delta is formed.

Please Do Now! 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.

Share your answer with a partner. Exit Question 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.