Key Vocabulary Terms

continent - one of the seven major land areas of the earth.
rotation - spinning of the earth
axis - imaginary line through the earth that connects the North and South Poles
north pole - point farthest north on the earth
south pole - point farthest south on the earth

Key Concepts

The earth's shape is rounded, but not perfectly round.
The seven continents are Asia, Africa, North America, South America, Antarctica, Europe, and Australia.
The four major oceans are Atlantic, Pacific, Indian, and Arctic.
The earth rotates from west to east.

Did you learn these Objectives?

Can you describe the earth's shape?
Did you locate the seven continents?
Are you able to name the four major oceans?
Can you explain rotation.

Lesson 2 "The Earth's Rotation and Time"

Key Vocabulary Terms

standard time zone - area that has the same clock time
international date line - imaginary line that defines the start of a day

Key Concepts

Use the map on page 34 to determine what time zone you are in. Alaska is in the Alaska time zone.
If it is 10:00 AM in Tulsa, it is 7:00 AM in Juneau.
If it is noon in New York, it is 11:00 AM in Monterrey.
If it is 11:00 PM in Sacramento, it is 9:00 PM in Honolulu.
You would have to move your watch backward if you were traveling from Toronto to Eugene.

Did you learn these Objectives?

Can you explain what causes day and night?
Are you able to describe the standard time zones?

Investigation 2-1 "Modeling the Earth's Rotation" (Optional, must complete 16 total investigations)

Key Concepts

You will further learn the causes of day and night by creating a model that shows the earth's rotation.

Lesson 3 "A Grid System on a Map"

Key Vocabulary Terms

grid - set of horizontal and vertical lines on a map

Key Concepts (Answers to Review on P39)

On the map on page 38 highway 55 is located in column 5 although others also pass through the column.
On the map on page 38 Central is located in block A2.
On the map on page 38 Highway 80 crosses Highway 55 in block A5.
On the map on page 38 block B5 contains 2 parks.
On the map on page 38 Goose Lake Prairie State Park is located in block C4.

Did you learn these Objectives?

Are you able to explain what a block grid is?
Can you use a block grid to locate a point on a map?

Investigation 2-2"Describing Location on a Round Surface" (Optional, must complete 16 total investigations)

Key Concepts

You will begin to understand how latitude and longitude work to find a location on the earth by investigating your own way to describe a location on a round surface.

Lesson 4 "Latitude"

Key Vocabulary Terms

latitude - angle that describes the distance north and south of the equator.
equator - line of 0 degrees latitude halfway between the poles.
parallel - line of latitude.
degree - unit for measuring angles in a circle or sphere.

Key Concepts (Answers to Review on P45)

The latitude of the equator is 0 degrees.
The latitude of the South Pole is 90 degrees.
South America and Africa extend both north and south of 0 degrees latitude.
The latitude of the northern tip of South America is about 12 degrees north.
The latitude of YKSD is about 62 degrees north.

Did you learn these Objectives?

Can you explain what a global grid is?
Are you able to define latitude?
Can you estimate a point's latitude?

Lesson 5 "Longitude"

Key Vocabulary Terms

longitude - angle that describes the distance east or west of the prime meridian.
meridian - line of longitude
prime meridian - line of 0 degrees longitude.

Key Concepts (Answers to Review on P47)

The longitude of the prime meridian is 0 degrees.
The highest numbered meridian is 180 degrees.
The eastern edge of South America is about 35 degrees west.
YKSD is about 150-160 degrees west.
Both latitude and longitude lines are part of the global grid and are imaginary lines encircling the earth. Latitude lines are parallel lines that circle the globe from east and west, while longitude lines are lines that meet at the poles, run north and south , and are not parallel.

Did you learn these Objectives?

Can you define longitude?
Are you able to estimate a point's longitude using the map on page 46.

Lesson 6 "A Grid System on a Globe"

Key Vocabulary Terms

hemisphere - half of the earth

Key Concepts (Answers to review questions on page 50)

The city located at 30 N, 90 W is New Orleans.
The city located at 40 N, 76W is Philadelphia.
The city located at 39N, 105 W is Denver.
The latitude and Longitude of Helena is 47N, 113 W.
The latitude and Longitude of Winnipeg is 50N, 97W.

Did you learn these Objectives?

Are you able to use latitude and longitude to find a point on the earth?
Can you explain what hemispheres are?

Chapter Summary and Review

See page 21 - 23.

Chapter 1 Review answers are