Lesson 3 Earth's Surface

In a chart titled How Soils Form, which entry should you record for the row Weathering?

• stones fall in a canyon
• mud slides down a steep hill 
• ice becomes water
• broken rock becomes part of Earth’s surface

On a new map of an area, a delta seems to be larger than on older maps of this same area. How can you best determine whether the size of the delta has changed?

• use the map scale
• go to the area and look
• place the maps side by side
• do research about erosion

You explore how water helps form soil. You study how—

• water acts in a cloud
• water weathers rock into small pieces
• water flows in streams that enter the ocean
• water turns into steam when hot 

Which entry is recorded in the correct order?

• Water enters rock
• Soil forms.
• Water freezes.
• Ice cracks rock.

Which of the causes of erosion brings sand to a desert?

• glaciers
• gravity
• water
• wind

What is the name for a part of Earth’s surface with a certain shape?

• core
• landform
• mantle
• zone

Some landforms are made by moving water or ice. Identify the landform which is a low area made by moving water or ice.

• a hill 
• a mountain
• a plateau
• a valley

Which explains the difference between a plain and a plateau?

• A plateau is flat and higher than a plain
• A plain is pointed and goes around a plateau.
• A plain is flatter and higher than a plateau.
• A plateau is smaller and lower than a plain.

Sonal makes a model with four different landforms. Which of these objects could she include in her model?

• cloud
• hill
• house
• ocean

A student is traveling with her family. As they travel, she draws in her notebook the interesting things that she sees. On one page she drew a tall landform with snow on its jagged peak. Identify the landform that she saw during the trip.

• hill
• ocean
• mountain
• grassland