Lab # 9 pg 179 Earth – Sun Relations. Weather ► The state of the atmosphere at a particular place for a short period of time. ► Described by measuring.

Slides:

Advertisements

Similar presentations

March Equinox. March Equinox March Equinox (around March 21 March Equinox (around March 21. Noon sun is directly over head on the equator. Days and.

Advertisements

Variation of Insolation

What do you already know? The sun has the following effects on earth:

Chapter 2- Earth in Space

Seasons on Earth All Figures from planet.html By Diana L. Duckworth Rustburg High School Campbell County, VA.

Seasons Seasons are periods of time over the course of a year during which certain weather conditions prevail. Climate describes the average weather conditions.

LEARNING GOALS Investigation 3- Seasons and Sun

EARTH ° Prime Meridian O ° Arctic Circle 66 2/3 °

Earth’s Motions, Solar Radiation, and the Seasons

Today’s Agenda… Bellringer: Identify each as rotation or revolution (this is not multiple choice) A. Takes 24 hours B. Spins on Axis C. Takes 365 ¼ days.

Earth – Sun Relationships

Exercise 12 – Pg. 173 Earth – Sun Relations

SEASONS AND THE SUN PATH

Insolation Insolation = Incoming Solar Radiation Insolation In = Heat Out.

The Reason for the Seasons

1 2.1 Understand how the occurrence of and the conditions related to day and night and the seasons are caused by the earth’s movement in space.

Sun-Earth System Investigation 3, Part 2

December March June September

Equinoxes, Solstices, Insolation, and the Analemma

The Sun, Seasons and Weather

WEATHER, CLIMATE, & ATMOSPHERE.

Choose a category. You will be given the answer. You must give the correct question. Click to begin.

World Climate Patterns Earth-Sun Relations

Earth-Moon-Sun Cycles. Cycle # 1 Day and Night Day  Night  Day  Night.

Earth-Sun Relationships. Key Concepts  Insolation: The solar radiation incident on a unit horizontal surface at the top of the atmosphere.  Essentially,

Earth-Sun Relationships (How does one affect the other?)

24.2 Sun and Seasons

Seasons. What Causes Seasons? Seasons are caused by the tilt of the earth’s axis as it moves around the sun. Seasons happen because the Earth is tilted.

Day 11 Sun – Earth System Investigation 3 part 2.

Earth’s Seasons. Rotation 1.The imaginary line that passes through Earth’s center and the North and South poles is called Earth’s axis. 2.Earth spinning.

Why do we have day and night?. Earth’s rotation  The Earth rotates on its axis (imaginary vertical line around which Earth spins) every 23 hours & 56.

What causes seasons? The tilt of the Earth on its axis The 23.5° tilt is caused by the interaction between the Moon and the Earth.

Concept Map. This affects the angle of the Sun’s rays and the length of the daylight hours.

Earth-Sun Relationships The Reasons for the Seasons.

Earth-Sun Relationships The Reasons for the Seasons.

Climates, Seasons, & Days

Earth’s Physical Geography Chapter 2, Section 1. Our Planet, the Earth The Earth, sun, planets, and stars are all part of a galaxy, or family of stars.

Malaria Season beginning end.

Quiz on Tuesday, November 24

Reason for Seasons Aim: How does the tilt of Earth’s axis and Earth’s movement cause seasons?

Earth in Space EARTH, THE SUN, AND THE SEASONS. Earth, the Sun, and the Seasons  Why is Earth colder in winter than in the summer?  Not because Earth.

Earth-Sun Relationships p.p. 481 – 482 & Nearly all energy that drives our weather and climate on Earth comes from the Sun Earth only absorbs.

Seasons. Seasons happen because of Earth’s tilt on its axis AND revolution around the Sun. Axis- imaginary line drawn from the north to the south pole.

The Sun’s Path. Summer Solstice (approximately June 20-21) North Pole: The North Pole (90 degrees north latitude) receives 24 hours of daylight, as it.

Warm -Up Quick Write: (2 min.) Quick Write: (2 min.) What can you tell me about the seasons? What can you tell me about the seasons? –What are they called?

Axis: imaginary line that passes through Earth’s center and the North & South Poles Earth’s axis tilt = 23.5° causes Earth’s seasons causes ‘length’ of.

Reason for Seasons Aim: How does the tilt of Earth’s axis and Earth’s movement cause seasons?

Take 5 minutes to work on your Landforms Gallery Walk.

Aim: Why do we experience the seasons?

Solar System and the Earth-Sun Relationship

Why do we have seasons?.

Motion of the Earth Bellwork 10/25 - Wednesday

Objectives 2f and 4c 2f = 3/3 = 100% 4c = 11/11 = 100%

Climates, Seasons, & Days

Earth-Sun Relationship

Climates, Seasons, & Days

Seasons Earth-Sun Relations.

Aim: What causes Seasons?

Earth, Sun, Moon System Next Generation Science Standards.

Climates, Seasons, & Days

Spring Summer Fall Winter Earth's Seasons.

World Climate Patterns Earth-Sun Relations

Climates, Seasons, & Days

Climates, Seasons, & Days

Physical Earth- Earth/Sun Relationships

Presentation transcript:

Lab # 9 pg 179 Earth – Sun Relations

Weather ► The state of the atmosphere at a particular place for a short period of time. ► Described by measuring the four basic elements: temperature, moisture, air pressure, and wind (direction and velocity).

Temperature ► Most important variable; it controls the other variables. ► Example cool air high pressure system, and warm air low pressure system. ► Earth is heated from the Sun.

Solar Heat ► Intensity - the angle at which the rays strike the surface of the Earth. ► Duration- number of hours of daylight in a 24 hour period. ► They both will determine the amount of solar radiation any place on Earth will receive.

Ray Diagram on Pg 180 ► The angle from the Sun to point A is 90 O. The sun beam projected will cover an area of 10mm. ► If the angle from the Sun to point B is 30 O. The sun beam projected will cover an area of 17mm. ► Thus the rays hitting point A are?? Stronger

Solar Radiation ► Why is it warmer at the equator? ► The greater the angle the stronger the intensity. ► Tropic of Cancer – 23.5 N Lat. ► Tropic of Capricorn – 23.5 S Lat.

Solar radiation would be constant if it were not for: ► The Earth’s rotates on its axis on a and revolves around the Sun ► Throughout the year the Earth’s axis is pointed to the same place. ► The Earth rotates counter clockwise ► One whole revolution = 24 hours. ► If the Earth was not titled then we would not have seasons.

Days of the year ► Summer Solstice – (ours June 20-22) longest day of the year the day with the greatest number of hours of daylight. ► Winter Solstice – (ours Dec 21) shortest day of the year because it is the day with the least hours of daylight.

Circle of Illumination ► This is what gives us darkness at night and light during the day. ► Arctic circle – 66.5 O N Latitude ► Antarctic circle – 66.5 O S Latitude ► Both have 24 hours with and without sun.

Solstice # 1 ► June ► For us this is the Summer Solstice. ► Rays of the Sun are directed toward the Tropic of Cancer. The rays hit this area at 90 O. ► If we lived below the equator then it would be the Winter Solstice. ► Because of the tilt, more solar intensity hits the tropic of Cancer and less at the tropic of Capricorn. ► Circle of illumination South pole 0 hrs of sun and North pole 24 hours of sun.

Equinox ► Rays of the Sun are migrating between the Tropic of Cancer and the Tropic of Capricorn. ► At this time rays of the Sun are vertical at the equator. ► This occurs Mar and Sept 22-23

Solstice # 2 ► Dec ► For us this is the Winter Solstice. ► Rays of the are directed toward the Tropic of Capricorn. The rays hit this area at 90 O. ► At this time the rays hit the equator at less then 90 O. ► The rays hit the Tropic of Cancer at a smaller angle. ► Remember the greater the angle the stronger the intensity. ► Circle of illumination N pole 0 hrs of sun and South 24 hours of sun.

Equinox ► Suns rays hitting Equator at 90 O angle ► Less at both tropics ► First day of spring and fall. ► March and Sept ► Circle of illumination cuts through the poles, thus 12 hours of light and dark at the poles.

The Sun is Directly Overhead Equator 0 O Lat. Overhead Mar 21 and Sept. 21 Tropic of Cancer 23.5 O N Lat. Overhead on June 21 Tropic of Capricorn 23.5 O S Lat. Overhead Dec. 21

Analemma Figure 12.5 pg 183 ► Tells us where the sun is overhead at noon time in the world. ► Used for navigation before GPS. ► Nov.4 the sun is overhead at noon time at 15 O S Latitude ► April 15 9 O N Latitude

Chapter Summary pg 187 ► Questions 1, 4, 5 & 6 ► # 1 Solar radiation 0 O - 30 O = 50% 30 O - 60 O = 36% 60 O - 90 O = 14% ► # 4 The greater the angle the stronger the intensity.  This is because of the angle that the rays hit the Earth.