Presentation on theme: "Standard and Essential Question"— Presentation transcript:
1Standard and Essential Question S6E2c. Relate the tilt of the earth to the distribution of sunlight throughout the year and its effect on climate.How does the tilt of the earth affect the seasons and Earth’s climate?
2Standard and Essential Question https://www.youtube.com/watch?v=q4_-R1vnJyw&feature=youtu.behttps://www.teachervision.com/winter/video/73032.html#prettyPhoto[flash]/0/https://www.youtube.com/watch/?v=r-dtBfkzyl0
3Tilt of the Axis- always points in the same direction
4Standard and Essential Question S6E2c. Relate the tilt of the earth to the distribution of sunlight throughout the year and its effect on climate.How does the tilt of the earth affect the seasons and Earth’s climate?
5The Seasons What is the difference between rotation and revolution ? What causes the earth’s seasons ?What is the position of earth during each season?How does Earth’s tilt cause temperature differences in the seasons ?
11RevolutionRevolution:An object traveling on a path around another object.The Earth traveling around the sun.The Earth REVOLVES around the sunOne revolution takes approximately 365 days ( 1 year)The Earth’s revolution around the sun is why we have years and seasons.In the box on your notes, draw the Earth revolving around the sun.
13What causes the Earth’s Seasons ? The earth is divided by the equator into two halves called hemispheres ( North and South)
14What causes the Earth’s Seasons ? Earth’s orbit + the way that the Earth tilts on its axis causes the seasons.The sun’s rays strike Earth unevenly- at different angles at different times of the year
15Position of EarthThe seasons are always opposite in Earth’s Northern and Southern Hemispheres.
16Position of Earth Summer: the hemisphere pointing towards the sun. Winter: in the hemisphere pointing away from the sun.Fall/Spring: when both hemispheres are facing the sun equally.
17Position of Earth Northern Hemisphere tilts towards the sun= summer in N. Hemispherewinter in S. HemisphereSouthern Hemisphere tilts towards the sun=summer in Southern Hemispherewinter in Northern Hemisphere
18Position of EarthTwo points where axis is not tilted away or toward the sun. These points mark the beginning of fall and springFall in Northern Hemisphere, Spring in Southern HemisphereSpring in Northern Hemisphere, Fall in Southern Hemisphere
19Position of EarthWhen it is fall in the Northern Hemisphere, what season is in the Southern Hemisphere?When it is winter in the Northern Hemisphere, what season is in the Southern Hemisphere?When it is spring in the Northern hemisphere, what season is it in the Southern hemisphere?When it is fall in the Southern Hemisphere, what season is it in the Northern Hemisphere?
21Fill in the blank for what season it would be in the southern hemisphere. Northern HemisphereSpringSummerFallWinterSouthern HemisphereThe seasons are always opposite in Earth’s Northern and Southern Hemispheres.
22What causes the Earth’s Seasons ? physics.weber.edu
30Temperature and Daylight The sun’s rays deliver the most energy when Direct
31Temperature and Daylight During Winter, sunlight is Less direct, meaning the area receives less Energy from the sunDuring Summer, sunlight is More direct, meaning the area receives more Energy from the sun
32Flashlight Activity The sun’s rays deliver the most energy when Direct The sun’s rays deliver the most energy when Direct
33Temperature and Daylight The amount of daylight also changes with the seasons.
34Temperature and Daylight The amount of daylight also changes with the seasons.In the Northern Hemisphere, from Dec. 21st to June 21st the period of daylight gets longer, from June 21 to Dec. 21st, the period of daylight gets shorter
36Temperature and Daylight The amount of daylight also changes with the seasons.SummerMore hours of daylightSun Heats surface longerTemperatures higherWinterLess hours of daylightSun heats surface for a shorter amount of timeTemperatureslower
37Temperature and Daylight The amount of daylight also changes with the seasons.
38Exceptions to the Seasons Many parts of the earth do not have distinct seasonsPlaces near the equator: receive direct sunlight all year long, so temperatures remain highThe north and south poles: get less direct sunlight from farther poles, so even in summer, these places are still cold.
39Exceptions to the Seasons Climate: average, year-after-year conditions of temperature, precipitation of an area.Influenced by latituide, ocean currents, near land/water.
40Exceptions to the Seasons 3 temperature zones:Tropical zone: around equator, extending to 23.5*N and 23.5*S.Warm climate because direct sunlight all year round.Polar zones: near poles from 66.5*-90*S and 66.5*-90* Ncold climate b/c receives sunlight at an angle.Temperate Zones: weather that ranges from warm in summer to cold in winter. Between 23.5 & 66.5.
41Exceptions to the Seasons Marine climates: warm winters and cool summers because large bodies of water cool down slowly and heat up slowly.* also because of ocean currents.Continental climates: cold winters and hot summers b/c no water.
42Exceptions to the Seasons Seasons change as the amount of energy that each hemisphere receives from the sun changes.