Weather Unit Ms. Graham & Mr. Bramblett 8-20-18 to 8-24-18

Monday 8-20-18 Q.O.D Slides 27-35 3-2-1

Monday 8-20-18 Q.O.D If 4 vehicles are the same make, model, and color, then they are considered to be______. --Answer Uniform

Atmospheric Layers Earth’s atmosphere is the layer of gases that surrounds the planet and makes conditions on Earth suitable for living things. Earth’s atmosphere is divided into several different atmospheric layers extending from Earth’s surface outward: Troposphere Stratosphere Mesosphere Thermosphere Ionosphere Exosphere The Steaks Must Thaw In Europe! MENU

Atmospheric Layers The layer of gases surrounding Earth; composed mainly of nitrogen and oxygen MENU

Troposphere Atmospheric Layers This is where all plants and animals live and breathe Where weather takes place Air is mixes T decreases with altitude MENU

Stratosphere Atmospheric Layers Ozone in this layer stops many of the sun's harmful rays from reaching the earth People can not breathe in this layer. Ozone layer depletion over time MENU

Mesosphere Atmospheric Layers T decreases with altitude This is where we see "falling stars" – meteors burning up as they fall to Earth MENU

Thermosphere Atmospheric Layers Layer of the atmosphere which is first exposed to the Sun's radiation and so is first heated by the Sun. The air is very thin The temperature dependent on solar activity. MENU

Ionosphere Atmospheric Layers An extension or a part of the thermosphere. So technically, the ionosphere is not another atmospheric layer. Free electrons and ions tend to recombine MENU

Atmospheric Layers Animation Exosphere Highest layer of the atmosphere. The air is very thin here Atoms and molecules escape into space MENU Atmospheric Layers Animation

Earth's Atmosphere

Tuesday 8-21-18 Q.O.D Slides 36-42 Table of contents Exit Slip 6. Atmospheric Layers 7. Atmospheric Temperature/Pressure Exit Slip

Tuesday 8-21-18 Q.O.D. This is the first layer of the atmosphere to be heated by the sun. Identify this layer. --Answer Thermosphere

Atmospheric Gases Nitrogen and Oxygen · the two most common gases; found throughout all the layers Ozone · a form of oxygen found in the stratosphere Water vapor and Carbon dioxide · important gases for weather conditions; found in the troposphere Trace gases, argon · play an insignificant role MENU

Atmospheric Gases Ozone Layer Pale blue gas with a strong odor. 90% of all ozone is found in the stratosphere 10% is found in the troposphere Ozone is extremely important because it is the only gas that absorbs ultraviolet radiation from the Sun and protects the surface of the Earth and people from the damaging effects of UV rays MENU

Atmospheric Temperatures Differences in temperature separate the layers · As altitude increases, temperature decreases in the troposphere · The stratosphere is cold except in its upper region where ozone is located · The mesosphere is the coldest layer · Even though the air is thin in the thermosphere, it is very hot · The cold regions of outer space extend from the exosphere MENU

Atmospheric Pressures The air pressure, the force exerted by the gases pushing on an object, is greatest near the surface of Earth, in the troposphere. · Air pressure decreases through the layers farther out from the surface as Earth’s pull of gravity decreases. Troposphere pressure Decreases Exosphere Troposphere pressure decreases MENU

Atmospheric pressure decreases as the altitude increases.

Wednesday 8-22-18 Q.O.D Slides Table of Contents Exit Slip Bramblett 44-57 Graham Second Step Presenter Table of Contents 8. Water Cycle Exit Slip Mini Test Monday 8-27-18

Wednesday 8-22-18 Q.O.D If the barometric reading rises then the air ________ ________. --Answer Pressure increases

Thursday 8-23-18 Q.O.D Slides Table of Contents Exit Slip Bramblett—Second Step Presenter Graham 44-57 Table of Contents 8. Water Cycle Exit Slip Mini Test Monday 8-27-18

Thursday 8-23-18 Q.O.D. Examine the following data. This day was clear and cool. If it rained the next day, which numbers would MOST likely change? --Answer Precipitation and air pressure High temperature 48*F Precipitation 0 cm Low temperature 44*F Wind Speed 1-5 mph First high tide 2:37 AM Air Pressure 30.05 in. First low tide 8:15 AM Moon Visibility 79 %

Water Cycle includes precipitation, evaporation, transpiration, condensation, surface-water flow, and groundwater flow Water is always moving between the atmosphere (troposphere) and surface of Earth. Each components of the water cycle process has certain conditions under which each form of precipitation develops: MENU

MENU

Water Cycle Precipitation · After condensation occurs (forming clouds), water droplets fall in various forms of precipitation – rain, snow, freezing rain, sleet, or hail, depending upon weather conditions. · Temperature variations within clouds and/or within the region between the cloud and Earth allows for the various forms of precipitation. MENU

Precipitation Rain & Drizzle- most common type of precipitation. Freezing Rain- drizzle from stratus clouds. Freezing Rain- raindrops freeze when they hit the ground. Sleet- raindrops that freeze before they hit the ground. MENU

Precipitation Sleet Profile MENU Water Cycle Animation

Precipitation snow- as ice grows and merges into clouds they form snowflakes. hail- is the largest type of precipitation. Lumps or balls of ice that fall from cumulonimbus clouds in warm weather. MENU

MENU

Evaporation/Transpiration Water Cycle Evaporation/Transpiration · Water enters the atmosphere as water vapor through evaporation and transpiration, plants releasing water vapor. Humidity- the amount of water vapor in the air Relative humidity- compares the amount of water in the air with the maximum amount of water vapor that can be present at that temperature MENU

Water Cycle · Condensation happens in the atmosphere as water vapor changes to water droplets. · Clouds form as a result of condensation. · Dew forms when water vapor condenses directly onto a surface; · Frost forms when water vapor changes from gas directly to ice crystals on a surface when the temperature at which condensing would take place is at the freezing point or below. MENU

Groundwater Story Animation Water Cycle Run-off · If precipitation falls on land surfaces, it always attempts to move back toward sea level as surface-water flow or groundwater flow. · The surface that receives the precipitation determines its flow back towards sea level. MENU Groundwater Story Animation

Examples are: · Water will remain on the surface when the surface is not porous or the precipitation is falling too fast for the water to sink into the ground. · Water will sink into the ground when the surface is porous and there is lots of space in the soil to hold the water. MENU

Friday 8-24-18 Q.O.D Demonstration Review Mini-Test Monday 8-27-18

July Weather Conditions in Four Cities Friday 8-24-18 Q.O.D Gloria gathered the data in the table for July. July Weather Conditions in Four Cities Washington, DC Los Angeles, CA Cape Town, South Africa Sydney, Australia Daily Average High Temperature (*F) 88 82 62 Daily Average Low (*F) 68 63 47 42 Typical Daily Chance of Precipitation High Very Low Very High Low Which conclusion is BEST supported by the data? A. July is summer in the Northern Hemisphere and winter in the Southern Hemisphere. B. July is rainy in the Northern Hemisphere and dry in the Southern Hemisphere. C. July is the coldest month of the year in Sydney, Australia. D. July is the warmest month of the year in Los Angeles, CA. --Answer