Reasons for the Seasons Nearly 150 million kilometers

  • Slides: 22
Download presentation
Reasons for the Seasons

Reasons for the Seasons

Nearly 150 million kilometers separate the sun and Earth, yet solar radiation drives Earth's

Nearly 150 million kilometers separate the sun and Earth, yet solar radiation drives Earth's weather.

Does the distance from the Sun make the Seasons? • NO • The Earth

Does the distance from the Sun make the Seasons? • NO • The Earth is actually farther away from the Sun when we have our Summer. July 6 th January 3 rd

Perihelion- Earth is closer to the Sun January 3 rd

Perihelion- Earth is closer to the Sun January 3 rd

Aphelion- Earth is farthest from the Sun July 6 th

Aphelion- Earth is farthest from the Sun July 6 th

Reason for the Seasons 1. The Earth’s tilt causes the seasons • It is

Reason for the Seasons 1. The Earth’s tilt causes the seasons • It is tilted at 23. 5 degrees What is the angle of the tilt of the axis? 23. 5°

• The angle of the sun’s radiation hitting the Earth impacts the climate

• The angle of the sun’s radiation hitting the Earth impacts the climate or temperature.

If the tilt were the only factor, then every location on Earth would have

If the tilt were the only factor, then every location on Earth would have one season and it would never change.

2. Earth’s Revolution Causes the Suns rays to strike at different locations as the

2. Earth’s Revolution Causes the Suns rays to strike at different locations as the Earth orbits the Sun.

When northern hemisphere is facing the sun: • Summer Solstice June 21 st or

When northern hemisphere is facing the sun: • Summer Solstice June 21 st or 22 nd

SUMMER SOLSTICE Most direct rays over Northern Hemisphere Striking at Tropic of Cancer 23.

SUMMER SOLSTICE Most direct rays over Northern Hemisphere Striking at Tropic of Cancer 23. 5° N Light = 15 hours (about 14. 27 (NC) Dark = 9 hours

Antarctica is completely dark for 24 hours and the Arctic is completely light for

Antarctica is completely dark for 24 hours and the Arctic is completely light for 24 hours!!!

Fall Equinox (September 22 or 23)

Fall Equinox (September 22 or 23)

EQUAL amounts of daylight and darkness everywhere. Direct rays over Equator: Light = 12

EQUAL amounts of daylight and darkness everywhere. Direct rays over Equator: Light = 12 hours Dark = 12 hours

• Winter Solstice - December 21 -22 • SHORTEST DAY !!! • Most

• Winter Solstice - December 21 -22 • SHORTEST DAY !!! • Most direct rays over Southern hemisphere • Striking at Tropic of Capricorn 23. 5°S • Light = 9 hours Dark = 15 hours

Spring Equinox (March 21 or 22)

Spring Equinox (March 21 or 22)

• EQUAL amounts of daylight and darkness everywhere. • Direct rays over Equator:

• EQUAL amounts of daylight and darkness everywhere. • Direct rays over Equator: • Light = 12 hours Dark = 12 hours

The Southern Hemisphere has opposite Seasons than us. . . WHY?

The Southern Hemisphere has opposite Seasons than us. . . WHY?

Seasons Reasons SEASONS The Seasons are divisions ofSeasons Reasons SEASONS The Seasons are divisions of
Seasons What do you know about seasons SeasonsSeasons What do you know about seasons Seasons
Seasons What Causes Seasons n n n SeasonsSeasons What Causes Seasons n n n Seasons
SEASONS What causes the seasons The seasons changeSEASONS What causes the seasons The seasons change
Reasons for the Seasons Chapter 17 1 NearlyReasons for the Seasons Chapter 17 1 Nearly
Reasons for the Seasons True or False SeasonsReasons for the Seasons True or False Seasons
Seasons Reasons for the Seasons Tilt of EarthsSeasons Reasons for the Seasons Tilt of Earths
The Reasons for Seasons 12122021 The Seasons 1The Reasons for Seasons 12122021 The Seasons 1
The Reasons for Seasons 12222021 The Seasons 1The Reasons for Seasons 12222021 The Seasons 1
The Reasons for Seasons 12222021 The Seasons 1The Reasons for Seasons 12222021 The Seasons 1
REASONS FOR THE SEASONS WHAT ARE THE SEASONSREASONS FOR THE SEASONS WHAT ARE THE SEASONS
The Reasons for Seasons 12292021 The Seasons 1The Reasons for Seasons 12292021 The Seasons 1
Reasons for Seasons The seasons on Earth changeReasons for Seasons The seasons on Earth change
The Reasons for Seasons 172022 The Seasons 1The Reasons for Seasons 172022 The Seasons 1
The Reasons for Seasons 1192022 The Seasons 1The Reasons for Seasons 1192022 The Seasons 1
The Reasons for Seasons 1212022 The Seasons 1The Reasons for Seasons 1212022 The Seasons 1
The Reasons for Seasons 2142022 The Seasons 1The Reasons for Seasons 2142022 The Seasons 1
The REASONS for The SEASONS The seasons areThe REASONS for The SEASONS The seasons are
Our Sun v 93 million miles 150 millionOur Sun v 93 million miles 150 million
www 11 MILLION org uk 11 Million reasonswww 11 MILLION org uk 11 Million reasons
500280 150 k 338290 150 k 13676 150500280 150 k 338290 150 k 13676 150