Sample
Summaries after sample
, U2: The Earth’s U1: Latitude and longitude
rotation on its axis
• Latitude – distance north and south of the Equator.
World time, time zones and • Earth rotates on its axis once every • Longitude – distance east and west of the Prime Meridian.
24hr – causes day and night. • There are 60 minutes in 1 degree.
the International Date Line
•
• The difference in time is calculated by using longitude.
• The International Date Line - imaginary line through the Scale
Pacific Ocean roughly corresponding to 180° longitude.
•
Line and word scales
The Earth’s revolution around the sun U1: Maps and • Word scales – explains the scale in words.
• Measure the distance between 2 points on a
The angle of axis atlases piece of paper and put it against the line scale.
U2: The globe • Curved lines are measured by using a string.
•
Sample
Earth’s axis is tilted at an angle of 23,5° from
perpendicular. U3: Satellite images
•
1
Earth takes 36554 days to revolve around the sun once.
Ratio scales
• Every 4 years is a leap year – an extra day is added. • Representative fraction (RF) – shows distance
•
Summaries after sample
on the map compared to the distance on the
1
Solstice, equinox and the change in U3: Information from ground as a fraction 50 000 which is 1:50 000.
angle of the midday sun satellite images
• Winter solstice – June 21 - the sun is directly • Meteosat – constantly sends information on How satellite images are used
overhead the Tropic of Cancer at noon. weather conditions.
• Summer solstice – December 21 - the sun is directly • SPOT – collects information about resources. • Help predict weather and climate.
overhead the Tropic of Capricorn at noon. • VIS images – produced by reflected sunlight. • Disease and famine can be tracked,
• Equinox - on March 21 and September 21 the sun is • IR images – produced by reflected heat from disasters can be viewed, and farmers can
vertically overhead the equator at noon. Earth’s surface, clouds and atmosphere. see what type of crops to plant.
• • Helps with direction and distance.
•
Seasonal changes in lengths of day and night
• The length of day increases as latitude increases north of the Seasonal temperature changes
Equator – causes continuous day-time north of the Arctic Circle. • Seasons are caused by the tilt of Earth’s axis, the number
• The length of day decreases as latitude increases south of the of daylight hours, and the varying angle of the noon sun.
Equator - causes continuous night-time south of the Antarctic Circle.
GR8 SS-GEO T1-M1 Mind Map Spot On Copyright © www.summariessa.co.za (DO NOT COPY)
Summaries after sample
, U2: The Earth’s U1: Latitude and longitude
rotation on its axis
• Latitude – distance north and south of the Equator.
World time, time zones and • Earth rotates on its axis once every • Longitude – distance east and west of the Prime Meridian.
24hr – causes day and night. • There are 60 minutes in 1 degree.
the International Date Line
•
• The difference in time is calculated by using longitude.
• The International Date Line - imaginary line through the Scale
Pacific Ocean roughly corresponding to 180° longitude.
•
Line and word scales
The Earth’s revolution around the sun U1: Maps and • Word scales – explains the scale in words.
• Measure the distance between 2 points on a
The angle of axis atlases piece of paper and put it against the line scale.
U2: The globe • Curved lines are measured by using a string.
•
Sample
Earth’s axis is tilted at an angle of 23,5° from
perpendicular. U3: Satellite images
•
1
Earth takes 36554 days to revolve around the sun once.
Ratio scales
• Every 4 years is a leap year – an extra day is added. • Representative fraction (RF) – shows distance
•
Summaries after sample
on the map compared to the distance on the
1
Solstice, equinox and the change in U3: Information from ground as a fraction 50 000 which is 1:50 000.
angle of the midday sun satellite images
• Winter solstice – June 21 - the sun is directly • Meteosat – constantly sends information on How satellite images are used
overhead the Tropic of Cancer at noon. weather conditions.
• Summer solstice – December 21 - the sun is directly • SPOT – collects information about resources. • Help predict weather and climate.
overhead the Tropic of Capricorn at noon. • VIS images – produced by reflected sunlight. • Disease and famine can be tracked,
• Equinox - on March 21 and September 21 the sun is • IR images – produced by reflected heat from disasters can be viewed, and farmers can
vertically overhead the equator at noon. Earth’s surface, clouds and atmosphere. see what type of crops to plant.
• • Helps with direction and distance.
•
Seasonal changes in lengths of day and night
• The length of day increases as latitude increases north of the Seasonal temperature changes
Equator – causes continuous day-time north of the Arctic Circle. • Seasons are caused by the tilt of Earth’s axis, the number
• The length of day decreases as latitude increases south of the of daylight hours, and the varying angle of the noon sun.
Equator - causes continuous night-time south of the Antarctic Circle.
GR8 SS-GEO T1-M1 Mind Map Spot On Copyright © www.summariessa.co.za (DO NOT COPY)
