Seasons ppt.pptx
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Seasons are divisions of the year marked by distinct weather patterns, changes in temperature, and variations in daylight hours. They are primarily determined by the Earth's axial tilt and its orbit around the Sun. The four main seasons recognized in many regions of the world are spring, summer, autumn (fall), and winter. Here's a brief description of each season: 1. Spring: Spring is the season that follows winter and precedes summer. It is characterized by gradually increasing temperatures, longer daylight hours, and the emergence of new plant growth. In many places, spring is associated with blooming flowers, budding trees, and the return of various animal species. 2. Summer: Summer is the warmest season of the year. It is marked by higher temperatures, extended daylight hours, and generally favorable weather conditions. Summer is often associated with vacations, outdoor activities, and the opportunity to enjoy beaches, swimming, picnics, and various recreational pursuits. 3. Autumn (Fall): Autumn, also known as fall, is the season that follows summer and precedes winter. It is characterized by cooler temperatures, shorter daylight hours, and the shedding of leaves from deciduous trees. Autumn is often associated with vibrant foliage, harvest festivals, and a gradual transition towards colder weather. 4. Winter: Winter is the coldest season of the year. It is marked by low temperatures, shorter daylight hours, and, in many regions, the presence of snow and ice. Winter is often associated with holidays such as Christmas and New Year's, as well as activities like skiing, snowboarding, ice skating, and cozy indoor pursuits. It's important to note that the timing and characteristics of seasons can vary depending on the geographical location, as well as regional climatic conditions.
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Seasons of the earth
The Earth's seasons are caused by its axial tilt of 23.45 degrees, not variations in its distance from the Sun. This tilt means the Northern and Southern Hemispheres receive sunlight at different angles throughout the year, causing summer to be warmer than winter. The solstices mark the longest and shortest days of the year, while the equinoxes occur when day and night are equal in length and mark the first days of spring and fall.
rotation and revolution
The document discusses different types of rotational and orbital motions of objects in space, including the Earth. It explains that the Earth's rotation on its axis causes day and night, while its revolution around the sun over the course of a year leads to seasonal variations due to changes in the sun's angle and day length. Examples of rotation are a top spinning on its axis or the Earth each day, while examples of revolution are the Earth orbiting the sun each year or the moon revolving around the Earth.
Earth and seasons
The Earth has seasons due to its tilted axis and yearly revolution around the sun. Spring occurs when the Northern hemisphere tilts toward the sun, bringing longer days and warmer temperatures. Summer is the warmest season with the longest days. Fall follows as temperatures cool and days shorten. Winter is the coldest season when the Northern hemisphere tilts furthest from the sun. Plants and animals have adapted to these seasonal changes through growth, reproduction, dormancy, and hibernation.
Seasons ii
The document discusses the causes of seasons on Earth. It explains that Earth has two motions: rotation, which causes days as Earth spins on its axis once every 24 hours, and revolution, which causes years as Earth orbits the sun once every 365 days. The seasons are caused by the 23.5 degree tilt of Earth's axis as it revolves around the sun in an elliptical orbit. When the North Pole is tilted toward the sun, it is summer in the Northern Hemisphere and winter in the Southern Hemisphere.
Reasons for the seasons notes
The document discusses the causes of seasons. It explains that seasons are not due to variations in Earth's distance from the sun, as some believe, but are instead caused by the tilt of Earth's 23.5 degree axis. This tilt results in changes in the amount of incoming solar radiation (insolation) and the angle at which the sun's rays strike different locations throughout the year, causing the seasons to change. Specifically, when a hemisphere is tilted toward the sun it experiences summer, and when tilted away it experiences winter.
Motions and seasons of earth
The Earth has two main motions that affect its seasons: rotation, which causes day and night, and revolution around the Sun. The tilt of the Earth's axis of rotation combined with its revolution cause the seasons by changing which hemisphere receives more direct sunlight throughout the year. The solstices mark the summer and winter beginning in each hemisphere when the Sun is at its maximum northern and southern declinations, while the equinoxes occur when day and night are equal in length as the Sun crosses the celestial equator.
Lesson 5 Motions of the Earth
Rotation and Revolution of the Earth
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The seasons are caused by the tilt of the Earth's axis of rotation relative to its orbit around the sun. During the summer and winter solstices, the sun's rays hit the Earth most directly at the Tropics of Cancer and Capricorn, respectively, causing the longest and shortest days of the year in the northern and southern hemispheres. Twice a year during the equinoxes, day and night are approximately equal lengths everywhere on Earth as the sun's rays hit the equator most directly.
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Seasons of the earth
The Earth's seasons are caused by its axial tilt of 23.45 degrees, not variations in its distance from the Sun. This tilt means the Northern and Southern Hemispheres receive sunlight at different angles throughout the year, causing summer to be warmer than winter. The solstices mark the longest and shortest days of the year, while the equinoxes occur when day and night are equal in length and mark the first days of spring and fall.
rotation and revolution
The document discusses different types of rotational and orbital motions of objects in space, including the Earth. It explains that the Earth's rotation on its axis causes day and night, while its revolution around the sun over the course of a year leads to seasonal variations due to changes in the sun's angle and day length. Examples of rotation are a top spinning on its axis or the Earth each day, while examples of revolution are the Earth orbiting the sun each year or the moon revolving around the Earth.
Earth and seasons
The Earth has seasons due to its tilted axis and yearly revolution around the sun. Spring occurs when the Northern hemisphere tilts toward the sun, bringing longer days and warmer temperatures. Summer is the warmest season with the longest days. Fall follows as temperatures cool and days shorten. Winter is the coldest season when the Northern hemisphere tilts furthest from the sun. Plants and animals have adapted to these seasonal changes through growth, reproduction, dormancy, and hibernation.
Seasons ii
The document discusses the causes of seasons on Earth. It explains that Earth has two motions: rotation, which causes days as Earth spins on its axis once every 24 hours, and revolution, which causes years as Earth orbits the sun once every 365 days. The seasons are caused by the 23.5 degree tilt of Earth's axis as it revolves around the sun in an elliptical orbit. When the North Pole is tilted toward the sun, it is summer in the Northern Hemisphere and winter in the Southern Hemisphere.
Reasons for the seasons notes
The document discusses the causes of seasons. It explains that seasons are not due to variations in Earth's distance from the sun, as some believe, but are instead caused by the tilt of Earth's 23.5 degree axis. This tilt results in changes in the amount of incoming solar radiation (insolation) and the angle at which the sun's rays strike different locations throughout the year, causing the seasons to change. Specifically, when a hemisphere is tilted toward the sun it experiences summer, and when tilted away it experiences winter.
Motions and seasons of earth
The Earth has two main motions that affect its seasons: rotation, which causes day and night, and revolution around the Sun. The tilt of the Earth's axis of rotation combined with its revolution cause the seasons by changing which hemisphere receives more direct sunlight throughout the year. The solstices mark the summer and winter beginning in each hemisphere when the Sun is at its maximum northern and southern declinations, while the equinoxes occur when day and night are equal in length as the Sun crosses the celestial equator.
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The seasons are caused by the tilt of the Earth's axis of rotation relative to its orbit around the sun. During the summer and winter solstices, the sun's rays hit the Earth most directly at the Tropics of Cancer and Capricorn, respectively, causing the longest and shortest days of the year in the northern and southern hemispheres. Twice a year during the equinoxes, day and night are approximately equal lengths everywhere on Earth as the sun's rays hit the equator most directly.
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The document discusses the Earth's rotation and revolution. It notes that rotation takes 24 hours and results in night and day, while revolution around the sun takes 365.25 days in a slightly elliptical orbit. It explains that the tilt of the Earth's axis causes the seasons, with summer occurring in hemispheres facing the sun due to more direct sunlight, not distance from the sun. Equinoxes occur when daylight and darkness are equal, while solstices are when the sun is furthest north or south.
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- Earth's rotation causes day and night and influences the number and placement of time zones around the world.
- Earth bulges slightly at the equator due to the centrifugal force of its rotation.
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The document discusses the tilt of the Earth's axis and how it causes seasons. The Earth's axis is tilted at 23.5 degrees from the plane of its orbit around the Sun. This tilt is called the inclination of the Earth's axis. It is the inclination that results in different parts of Earth receiving more or less sunlight over the course of a year, causing the seasons. The document encourages watching a video to better understand how the Earth orbits and rotates around the Sun along a fixed path, and how the tilted axis affects the seasons.
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Seasons.ppt
The document discusses the causes of seasons on Earth. It explains that Earth's axis is tilted at an angle of 23.5 degrees, and as Earth revolves around the sun, this tilt causes different parts of Earth to receive more or less direct sunlight over the course of a year, resulting in seasons. Specifically, summer occurs when the hemisphere is tilted toward the sun, receiving more direct rays, and winter occurs when tilted away. The solstices mark the beginning of summer and winter, while the equinoxes occur when day and night are approximately equal lengths.
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The document discusses the Earth's rotation and revolution. It notes that rotation takes 24 hours and results in night and day, while revolution around the sun takes 365.25 days in a slightly elliptical orbit. It explains that the tilt of the Earth's axis causes the seasons, with summer occurring in hemispheres facing the sun due to more direct sunlight, not distance from the sun. Equinoxes occur when daylight and darkness are equal, while solstices are when the sun is furthest north or south.
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The document discusses the two types of motions of the Earth: rotation and revolution. Rotation is the movement of the Earth on its axis, which takes 24 hours to complete one rotation. Revolution is the movement of the Earth around the sun, which takes 365.25 days to complete one revolution. Due to these motions, different parts of the Earth experience day and night, and the seasons change throughout the year.
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The document discusses several key facts about Earth's rotation:
- Earth spins on an imaginary axis, completing one rotation every 24 hours at a speed of over 1,000 mph.
- Earth's rotation causes day and night and influences the number and placement of time zones around the world.
- Earth bulges slightly at the equator due to the centrifugal force of its rotation.
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The document discusses the tilt of the Earth's axis and how it causes seasons. The Earth's axis is tilted at 23.5 degrees from the plane of its orbit around the Sun. This tilt is called the inclination of the Earth's axis. It is the inclination that results in different parts of Earth receiving more or less sunlight over the course of a year, causing the seasons. The document encourages watching a video to better understand how the Earth orbits and rotates around the Sun along a fixed path, and how the tilted axis affects the seasons.
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The seasons are caused by two factors: 1) the tilt of the Earth's axis of rotation relative to its orbit around the Sun, and 2) the Earth's revolution around the Sun. The tilt causes different amounts of sunlight to reach different parts of the Earth throughout the year, with more direct sunlight during the summer and less direct sunlight during the winter. Additionally, the Earth's revolution means different hemispheres receive more or less direct sunlight over the course of a year, contributing to the seasons.
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Rotation and day and night
The Earth has two types of movements: rotation around its axis, which takes 24 hours and results in the cycle of day and night as different parts of the Earth face the sun, and rotation around the sun in its orbit. The Earth's axis is an imaginary line passing through the north and south poles. When a part of the Earth faces the sun it is daytime, and when a part faces away it is night.
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The document discusses the different phases of the moon as seen from Earth. There are three main phases: the full moon where the entire lit side is visible, the quarter moon where half of the lit side is visible, and the crescent moon where only a sliver of the lit side is visible. The moon's appearance changes not because the moon itself changes, but because of the changing positions of the moon, Earth, and sun relative to one another throughout the lunar cycle.
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The document discusses the two types of motion of the Earth: rotation and revolution. It explains that the Earth rotates on its axis once every 24 hours, causing day and night. It also revolves around the Sun, completing one revolution every 365.25 days, and this revolution causes the changing of seasons as the Earth's distance from the Sun and the angle of sunlight hitting the Earth vary throughout the year.
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Seasons
The seasons are caused by the 23.5 degree tilt of the Earth's axis as it revolves around the sun, resulting in different parts of the Earth receiving more or less direct sunlight over the course of a year. Summer occurs in the northern hemisphere when its axis is tilted toward the sun, producing longer days, and winter happens when the axis is tilted away from the sun for shorter days. The changing position of the Earth relative to the sun's rays is responsible for seasonal variations in weather patterns and daylight hours around the world.
Seasons.ppt
The document discusses the causes of seasons on Earth. It explains that Earth's axis is tilted at an angle of 23.5 degrees, and as Earth revolves around the sun, this tilt causes different parts of Earth to receive more or less direct sunlight over the course of a year, resulting in seasons. Specifically, summer occurs when the hemisphere is tilted toward the sun, receiving more direct rays, and winter occurs when tilted away. The solstices mark the beginning of summer and winter, while the equinoxes occur when day and night are approximately equal lengths.
Seasons.ppt
The document discusses the causes of seasons on Earth. It explains that Earth's axis is tilted at an angle of 23.5 degrees, and this tilt is what causes the seasons as Earth revolves around the sun. As Earth revolves, different hemispheres receive more or less direct sunlight throughout the year, resulting in variations in temperature and daylight hours that define the seasons - summer, winter, spring and fall. The seasons are not caused by variations in Earth's distance from the sun, as some believe, but rather by the tilt of Earth's rotational axis.
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The document discusses the causes of seasons on Earth. It explains that Earth's axis is tilted at an angle of 23.5 degrees, and this tilt is what causes the seasons as Earth revolves around the sun. As Earth revolves, different hemispheres receive more or less direct sunlight throughout the year, resulting in variations in temperature and daylight hours that define the seasons - summer, winter, spring and fall. The seasons are not caused by variations in Earth's distance from the sun, as some believe, but rather by the tilt of Earth's rotational axis.
Seasons.ppt
The document discusses the causes of seasons on Earth. It explains that Earth's axis is tilted at an angle of 23.5 degrees, and this tilt is what causes the seasons as Earth revolves around the sun. As Earth revolves, different hemispheres receive more or less direct sunlight throughout the year, resulting in variations in temperature and daylight hours that define the seasons - summer, winter, spring and fall. The seasons are not caused by variations in Earth's distance from the sun, as Earth is actually closest in January and farthest in July.
Seasons.ppt
The document discusses the causes of seasons on Earth. It explains that Earth's axis is tilted at an angle of 23.5 degrees, and this tilt is what causes the seasons as Earth revolves around the sun. As Earth revolves, different hemispheres receive more or less direct sunlight throughout the year, resulting in variations in temperature and daylight hours that define the seasons - summer, winter, spring and fall. The seasons are not caused by variations in Earth's distance from the sun, as some believe, but rather by the tilt of Earth's rotational axis.
Seasons.ppt
The document discusses the causes of seasons on Earth. It explains that Earth's axis is tilted at an angle of 23.5 degrees, and this tilt is what causes the seasons as Earth revolves around the sun. As Earth revolves, different hemispheres receive more or less direct sunlight throughout the year, resulting in variations in temperature and daylight hours that define the seasons - winter, spring, summer and fall. Key dates like the solstices and equinoxes mark the transitions between seasons in each hemisphere.
Seasons.ppt
The document discusses the causes of seasons on Earth. It explains that Earth's axis is tilted at an angle of 23.5 degrees, and this tilt is what causes the seasons as Earth revolves around the sun. As Earth revolves, different hemispheres receive more or less direct sunlight throughout the year, resulting in variations in temperature and daylight hours that define the seasons - summer, winter, spring and fall. The seasons are not caused by variations in Earth's distance from the sun, as some believe, but rather by the tilt of Earth's rotational axis.
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The document summarizes why Earth experiences seasons. It is due to the 23.5 degree tilt of the Earth's axis as it revolves around the sun. This tilt causes the Northern and Southern Hemispheres to receive different amounts of sunlight throughout the year, creating the seasons. Summer occurs when a hemisphere is tilted toward the sun, receiving more direct sunlight and longer days. Winter happens when a hemisphere is tilted away, receiving less direct sunlight and shorter days. The solstices mark the longest and shortest days, while the equinoxes have equal day and night lengths.
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The document explains that seasons are caused by the tilt of the Earth's axis as it revolves around the sun, not by differences in distance from the sun. The Earth's 23.5 degree tilt causes different parts of the Earth to receive more direct sunlight throughout the year, resulting in variations in temperature and daylight hours that define the seasons. Summer occurs when a hemisphere is tilted toward the sun, receiving more direct rays, while winter happens when it is tilted away. Solstices mark the sun's northernmost and southernmost extremes, with the longest and shortest days of the year. Equinoxes occur when day and night are approximately equal in length everywhere on Earth.
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The document discusses the causes of seasons on Earth. Specifically, it explains that seasons are caused by the tilt of Earth's axis as it revolves around the sun, not by variations in Earth's distance from the sun. The tilt results in different parts of Earth receiving more or less direct sunlight throughout the year, causing the seasons of winter, spring, summer and fall in each hemisphere. Key concepts are that summer occurs when the sun's rays hit an area more directly, and winter occurs when the sun's rays hit an area at an extreme angle.
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The seasons are caused by two factors: 1) the tilt of the Earth's axis and 2) the Earth's revolution around the sun. The tilt of the Earth's axis causes different locations to receive different amounts of solar radiation throughout the year, similar to how the intensity of light from a flashlight changes depending on its angle. Additionally, the Earth's revolution means the most direct sunlight shifts between the Northern and Southern hemispheres over the course of a year, bringing warmer weather to each hemisphere in turn.
Seasons website
The seasons are caused by two factors: 1) the tilt of the Earth's axis and 2) the Earth's revolution around the Sun. The tilt of the Earth's axis causes different intensities of sunlight throughout the year depending on the angle of sunlight. The Earth's revolution means that different parts of the Earth receive more direct sunlight during different parts of the year, causing the seasons to shift. Specifically, summer occurs in the Northern Hemisphere when it is tilted toward the Sun, winter when it is tilted away, and spring and fall during the equinoxes when the sunlight is most indirect.
Annual Motions - Reasons for Seasons
1) The seasons are caused by the 23.5 degree tilt of the Earth's axis as it orbits the sun, not by the Earth's varying distance from the sun.
2) When the northern hemisphere is tilted toward the sun, it experiences summer, and when tilted away, it experiences winter.
3) The summer and winter solstices and vernal and autumnal equinoxes mark the changing seasons as the Earth revolves around the sun.
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This document discusses the relationships between the Earth, Sun, and Moon, and how they affect day and night, years, and seasons. It explains that the Earth's rotation on its axis causes day and night, with a full rotation taking 24 hours. It also explains that the Earth revolves around the Sun over the course of 365 days, which divides the year into four seasons due to the tilt of the Earth's axis. Finally, it discusses how the Moon revolves around the Earth over 29 days, and how the changing positions of the Sun, Earth, and Moon cause the Moon's phases.
The Earth's Energy Balance Presentation.pptx
The document discusses the causes of seasons on Earth. It explains that the Earth's axis is tilted at an angle of 23.5 degrees and that its revolution around the sun and rotation on its axis lead to seasonal changes in solar insulation between hemispheres. Specifically, it notes that summer occurs in the hemisphere that is tilted toward the sun, receiving more direct sunlight and having longer days, while winter happens when a hemisphere is tilted away from the sun with less direct sunlight and shorter days. It provides examples that on June 21 the Northern Hemisphere experiences summer and the Southern Hemisphere winter, and this is reversed on December 21.
Chapter 3 rotation and revolution
The document discusses the rotation and revolution of the Earth. It explains that rotation is the spinning of the Earth on its axis, which causes day and night, while revolution is the movement of the Earth around the Sun, taking one year to complete. It also describes how the tilt of the Earth's axis and its revolution cause the four seasons in the northern and southern hemispheres.
Rotation Revolution Axis and Shadows.pptx
The document discusses concepts related to Earth's rotation, revolution, and seasons. It states that Earth rotates on its axis over 24 hours, causing sunrise in the east and sunset in the west. It also explains that Earth revolves around the sun over the course of a year, and its tilted axis causes seasons as different parts of Earth receive more sunlight. The document is intended to teach these concepts and identify areas for students to learn more.
1º the earth
The Earth is the third closest planet to the sun and the fifth largest planet in the solar system. It is a sphere that rotates on its axis, causing day and night, and revolves around the sun, causing the seasons. The Earth's atmosphere protects it and allows life to exist thanks to liquid water on the surface.
Seasons 2014
The document discusses time zones, seasons, and the Earth's relationship to the sun. It explains that as the Earth rotates and revolves around the sun, different parts of the planet receive sunlight at different times, resulting in time zones. It also notes that the Earth is tilted on its axis and takes 365.25 days to orbit the sun, leading to seasons in the Northern and Southern Hemispheres. Key dates and phenomena like equinoxes and solstices are also outlined.
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Seasons ppt.pptx
- 2. Earth’s rotation • The Earth rotates on its axis (imaginary vertical line around which Earth spins) every 23 hours & 56 minutes. • One day on Earth is one rotation of the Earth. • Day on Earth is when our side of the Earth faces the sun. • Night on Earth is when the side of Earth we are on faces away from the sun. CLICK ON THIS IMAGE TO VIEW A SHORT VIDEO OF THE EARTH’S ORBIT
- 3. Earth’s revolution • It takes the Earth ~365.25days (or rotations) to travel or revolve around the Sun once. • This is called a year.
- 4. Why do we have seasons? • The Earth’s orbit around the sun is NOT a perfect circle. It is an ellipse. • Seasons are not caused by how close the Earth is to the sun. • In fact, the Earth is closest to the sun around January 3 and farthest away from the sun around July 4.
- 5. Why do we have seasons? • Seasons are the result of the tilt of the Earth's axis. • Earth’s axis is tilted 23.5°. • This tilting is why we have SEASONS like fall, winter, spring, summer. • The number of daylight hours is greater for the hemisphere, or half of Earth, that is tilted toward the Sun.
- 6. Why do we have seasons? • Summer is warmer than winter (in each hemisphere) because the Sun's rays hit the Earth at a more direct angle during summer than during winter
- 7. Why do we have seasons? • Also the days are much longer than the nights during the summer. • During the winter, the Sun's rays hit the Earth at an extreme angle, and the days are very short. These effects are due to the tilt of the Earth's axis.
- 8. Seasons…in a nut shell
- 9. Solstices • Solstices occur twice a year, when the tilt of the Earth's axis is oriented directly towards or away from the Sun, causing the Sun to appear to reach its northernmost and southernmost extremes. • Winter solstice is the shortest day of the year. In the Northern Hemisphere. It occurs on December 21 and marks the beginning of winter. • The Summer Solstice is the longest day of the year. It occurs on June 21 and marks the beginning of summer. Tyrrhenian Sea and Solstice Sky Credit & Copyright: Danilo Pivato
- 10. SOLSTICE • During the winter the Northern Hemisphere day lasts fewer than 12 hours and the Southern Hemisphere day lasts more than 12 hours. • During the winter solstice, the North Pole has a 24-hour night and the South Pole has a 24-hour day. • Sunlight strikes the earth most directly at the Tropic of Capricorn. C.LICK ON THE ANIMATION FOR A SHORT VIDEO ON SOLSTICES FROM NATIONAL GEOGRAPHIC
- 11. Notice that the Sun’s angle is greater in the summer and is higher in the sky, and it has a lower angle and it is lower in the winter sky. SUN’S ANGLE DURING SOLSTICES
- 12. Equinoxes • A day lasts 12 hours and a night lasts 12 hours at all latitudes. • Equinox literally means "equal night". • Sunlight strikes the earth most directly at the equator. • This occurs twice a year. C.LICK ON THE ANIMATION FOR A SHORT VIDEO ON EQUINOXES FROM NATIONAL GEOGRAPHIC
- 13. Equinox • The vernal (spring) equinox occurs usually March 20th. • The autumnal (fall) equinox occurs • usually September 22nd.
- 14. The Earth's seasons are not caused by the differences in the distance from the Sun throughout the year.
- 15. The seasons are the result of the tilt of the Earth's axis. I know this is a repeat, but it is important that you understand this idea. Many Americans, including Harvard graduates, do not know what causes seasons!
- 16. Review Look closely at where the Sun is hitting the Earth during each season: https://www.learner.org/jnorth/tm/mclass/sl/6/index.html
- 17. http://www.nmm.ac.uk/uploads/gif/seasons-full.gif When does the Earth(in the northern hemisphere) receive the greatest amount of direct energy from the sun? When does it receive the least amount of energy?