Learner Outcomes 1. TSWBAT: Identify the seasons based on orbital position of earth in relation to the sun.(F/P) 2. TSWBAT: Explain and label a rain shadow. (T/R)

Starting Assignment (8/29/17) 1. What is your favorite season? 2. List ONE example of human-environment interaction during your favorite season. Spring Summer Fall Winter

Today’s Agenda Starting Assignment Ch. 3.1: Seasons & Weather ppt. Complete Assignment from Monday Cooperative: Rain Shadow Effect Activity Outcome Sheets

SEASONS & WEATHER Ch. 3 -- Section 1

SEASONS are caused by 2 things: 1. Earth’s tilt 2. Earth’s revolution around the sun

Summer Winter

How do we know when the seasons officially change? Answer: Solstice & Equinox

SOLSTICE Happens two times a year Solstice means that the sun is shining brightest over the earth at Tropic of Cancer OR at the Tropic of Capricorn

JUNE SOLSTICE Beg. of summer in Northern Hemisphere Beg. of winter in Southern Hemisphere

DECEMBER SOLSTICE Beg. of winter in Northern Hemisphere Beg. of summer in Southern Hemisphere

Equinox days & nights are equal in length Happens twice per year (March & September) Marks beginning of spring or fall

SHOW SEASONS VIDEO CLIPS

Weather vs. Climate Weather = atmosphere’s condition at a specific time and place Climate = weather of a place over a long period of time

RECAP What two factors cause the seasons to occur? Answer: earth’s tilt & revolution around sun What term is used to mark beginning of summer and winter? Answer: Solstice What term is used to mark the beginning of spring and fall? Answer: Equinox Explain the difference b/w weather & climate.

The “Rain Shadow Effect” Rain Shadow Deserts Deserts were created in many different ways. However, all of the deserts in North America were created by the “Rain Shadow” effect. Moisture for storms comes from large bodies of water, primarily oceans, and is pushed towards the continents by massive air currents. When this moist air comes over a continent and hits a mountain, the moist air is then forced up one side of the mountain range where it cools, condenses, and often falls as rain on that same side of the mountain. In fact, mountains often receive much more precipitation than the areas around them. However, by the time this air pushes over the top of the mountain and down the other side, it has now lost much of its moisture. This creates a "Rain Shadow" effect, which can be so strong that the entire area on the other side of the mountain becomes a [vast desert, such as the ones in North America.

RAIN SHADOW EFFECT **on core exam *creates deserts

Show Rain Shadow video clips

Cooperative Activity --- The Rain Shadow Effect Rain Shadow Deserts Deserts were created in many different ways. However, all of the deserts in North America were created by the “Rain Shadow” effect. Moisture from storms comes from large bodies of water, primarily oceans, and is pushed towards the continents by massive wind currents. When this moist air comes up to a continent and hits a mountain, the water cycle occurs on that side of the mountain. Moist air is forced up one side of the mountain range where it cools, condenses, and often falls as rain on that same side of the mountain. In fact, mountains often receive much more precipitation than the areas around them. However, by the time this air pushes over the top of the mountain and down the other side, it has now lost most of its moisture. This creates a "Rain Shadow" effect, which can be so strong that the entire area on the other side of the mountain becomes a vast desert, such as the ones in western North America. Cooperative Activity --- The Rain Shadow Effect Formative score: ___/40 ACTIVITY 1: Create a map of a country with two cities. Only on one side of the map, the country should lie next to an ocean or lake. Also, the country should be divided in half by large mountains. The capital city of your country should be placed in an area where there is a high level of precipitation. The other city in your country should lie within a RAIN SHADOW. Be sure to have everything below completed. 1. Name both cities and place them in their correct locations _______ 5 pts 2. Label the water cycle as it occurs near one of the cities _______ 10 pts 3. Draw and label a Rain Shadow Line as it occurs near the other city ________ 5 pts 4. Create a key that uses thematic symbols to show differences in population, natural resources, and climate between the two cities. _______ 10 pts 5. Write one paragraph explaining your choices for the key (like why the population, natural resources, and climate are so different in each city). _______10 pts