Earth Science Lesson 1

Earth's surface is always changing.  Some changes take thousands of years.  Other changes happen within minutes.  These surface changes are caused by constructive and destructive processes.  Constructive processes build up the Earth's surface.  Destructive processes tear down the Earth's surface.  Sometimes humans use technology to alter or interfere with changes in the surface of the Earth.  

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Over time, the Earth's rocks get broken down into smaller pieces. This is called _________________

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Over time, the Earth's rocks get broken down into smaller pieces. This is called _________________

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When weathered rock is carried away to another location, it is called __________________________

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What causes erosion? Select all that apply

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Water is the main cause of erosion.

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Huge sheets of ice that move slowly over land

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Constructive or Destructive

erosion (water, wind)
deposition (delta, sand dune)
weathering (breaks it down)

Constructive Process
Destructive Process

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Match the words on the left with the correct description on the right

Draggable item		Corresponding Item
seismograph		overflow of water on land that is usually dry
dam		storm with powerful wind and heavy rain
volcano		fast spinning wind shaped like a cone
earthquake		to burst forth
tornado		strong shaking of the ground
levee		hole created when rock and gasses burst through the earth's surface
erupt		machine used to study earthquakes
delta		landform created from deposition at the mouth of a river
flood		man-made structure built across a river to prevent flooding
hurricane		man-made structure that runs along the sides of a river to help prevent flooding

Use the lyrics from the Weathering, Erosion, and Deposition Rap to help you identify the action in the examples below.

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A river drops sediment at it's mouth, forming a delta

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Through the seasons, the wooden bench cracks and splits

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As the glacier moves slowly across the land, it picks up bits of rock that grind on the Earth's surface.

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A dune is formed when the wind slows and drops sand in a pile

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Over time, the Earth's rocks get broken down into smaller pieces. This is called _________________

Over time, the Earth's rocks get broken down into smaller pieces. This is called _________________

When weathered rock is carried away to another location, it is called __________________________

What causes erosion? Select all that apply

Water is the main cause of erosion.

Huge sheets of ice that move slowly over land

Constructive or Destructive

Match the words on the left with the correct description on the right

A river drops sediment at it's mouth, forming a delta

Through the seasons, the wooden bench cracks and splits

As the glacier moves slowly across the land, it picks up bits of rock that grind on the Earth's surface.

A dune is formed when the wind slows and drops sand in a pile

A glacier melts and leaves behind cliffs and valleys