SS3G1&2

SS3G1a-b. Locate major topographical features on a physical map of the United States.

SS3G2. Locate and describe the equator, prime meridian, and lines of latitude and longitude on a globe.

a. Locate major rivers of the United States of America: Mississippi, Ohio, Rio Grande, Colorado, and Hudson.

b. Locate major mountain ranges of the United States of America: Appalachian, Rocky.

Compass Rose

• A compass rose is located at the bottom of most maps to help the user with directions.

• North (N)

• South (S)

• East (E)

• West (W)

Physical Map

A physical map is a 

map that shows 

elevation, rivers, 

landforms, and bodies

of water in a specific

area.

Key/Legend

A map key or legend as it is often called tells what the symbols on a map represent.

Multiple Choice

What does this picture show?

• physical map

• key/legend

• compass rose

Multiple Choice

Which legend/key gives us more information about an area?

Introduction

There are five major rivers in the United States; Mississippi, Ohio, Rio Grande, Colorado, and Hudson. Will you be able to locate all of them by the end of the unit?

River: A natural flowing watercourse, usually freshwater, flowing towards and ocean, sea, lake, or another river.

How do you think rivers support people to meet their needs? Turn and talk.

Multiple Choice

Rivers are good for...

• Growing crops

• Drinking water

• Transportation of goods

• All options

How to find a river on a map

• Rivers on maps are indicated by blue lines

• Point to a river on the board

Mississippi River

• The length of the Mississippi River is approximately 2,320 miles, making it the second largest river in our nation

• At its widest point, the Mississippi River stretches out over 7 miles in width.

• Can you find the Mississippi River on your map?

Multiple Choice

True or False: The Mississippi River is the largest river in the United States

• True

• False

Using your highlighter, highlight the Mississippi River on your personal map.

Ohio River

• The Ohio River is 981 miles long

• The Ohio River is the main source of drinking water for more than five million people

• The Ohio River empties into the Mississippi River

• Can you find the Ohio River on your map?

Find and highlight the Ohio River on your map

Rio Grande

• 1,900 miles long

• Creates a border between Texas and Mexico

• Shared between the United States and Mexico

• Can you find the Rio Grande on your map?

Multiple Choice

Which river is shared between the United States and Mexico?

• Rio Grande

• Mississippi

• Ohio

Using your highlighter, highlight the Rio Grande River on your map.

Colorado River

• 1,450 miles long

• The Colorado River is surrounded by Canyons

• The Colorado River flows through both Mexico and the United States, similar to the Rio Grande

Hudson River

• 315 miles long

• Flows through New York and New Jersey

• Discovered and named after English sea explorer, Henry Hudson

• Can you find the Hudson River on your map?

Multiple Choice

Which two rivers flow through both Mexico and the US?

• Hudson and Colorado

• Colorado and Rio Grande

• Rio Grande and Mississippi

Multiple Choice

Which river was named after an English explorer?

• Ohio River

• Mississippi River

• Rio Grande

• Hudson River