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Please take out. Blank sheet of paper Science Starter slips. Science Starter. If you could drive you car straight up (60 mph) into the sky how long would it take you to reach space?. Earth’s Changing Atmosphere. Mind Sprint. Please take out a sheet of paper. Explain what you already know. - PowerPoint PPT PresentationTRANSCRIPT
Please take outPlease take out
Blank sheet of paper Science Starter slips
Blank sheet of paper Science Starter slips
Science StarterScience Starter
If you could drive you car straight up (60 mph) into the sky how long would it take you to reach space?
If you could drive you car straight up (60 mph) into the sky how long would it take you to reach space?
Earth’s Changing Atmosphere
Earth’s Changing Atmosphere
Mind SprintMind Sprint
Please take out a sheet of paper. Explain what you already know.
The atmosphere is… The atmosphere is made up of… The atmosphere has… The atmosphere is affected by…
Please take out a sheet of paper. Explain what you already know.
The atmosphere is… The atmosphere is made up of… The atmosphere has… The atmosphere is affected by…
What we already knowWhat we already know
At the End of This UnitAt the End of This Unit
Some things you will know are… What the atmosphere is and why it is
so important for life on Earth. What the atmosphere is made of. How natural cycles affect the
atmosphere. How human pollution has affected the
atmosphere.
Some things you will know are… What the atmosphere is and why it is
so important for life on Earth. What the atmosphere is made of. How natural cycles affect the
atmosphere. How human pollution has affected the
atmosphere.
When finished with the Pretest
When finished with the Pretest
Put your scantron and test sheet on the front table.
Return to you seat and begin working on your vocab (small Earth’s Atmosphere booklet)
Put your scantron and test sheet on the front table.
Return to you seat and begin working on your vocab (small Earth’s Atmosphere booklet)
Take OutTake Out
Science Starter slips Agenda Coversheet Packets Earth’s atmosphere booklets
Science Starter slips Agenda Coversheet Packets Earth’s atmosphere booklets
Important DatesImportant Dates
Parent Signatures- Thurs 2/18 Booklet Check-in #1- Fri 2/19 Booklet Check-in #2- Tues 3/2 Unit Quiz- Tues 3/2 App. Project Quiz- Fri 2/26 App. Project Teaching- Mon 3/1
Parent Signatures- Thurs 2/18 Booklet Check-in #1- Fri 2/19 Booklet Check-in #2- Tues 3/2 Unit Quiz- Tues 3/2 App. Project Quiz- Fri 2/26 App. Project Teaching- Mon 3/1
Science StarterScience Starter
If you are flying in an airplane and your cabin loses pressure, why do oxygen masks drop down?
If you are flying in an airplane and your cabin loses pressure, why do oxygen masks drop down?
First 20 MinutesFirst 20 Minutes
Quiet independent work time Earth’s atmosphere booklets
Not optional
Quiet independent work time Earth’s atmosphere booklets
Not optional
Absorption Atmosphere Carbon cycle Convection Equilibrium Greenhouse
effect Greenhouse gas Mesosphere Ozone
Absorption Atmosphere Carbon cycle Convection Equilibrium Greenhouse
effect Greenhouse gas Mesosphere Ozone
Stratosphere Troposphere Water cycle Air pollution Altitude Conduction Density Fossil fuel
Stratosphere Troposphere Water cycle Air pollution Altitude Conduction Density Fossil fuel
Radiation Smog Thermosphere Ultraviolet
radiation Water vapor
Radiation Smog Thermosphere Ultraviolet
radiation Water vapor
Infrared radiation
Nitrogen cycle Particulate Reflection
Infrared radiation
Nitrogen cycle Particulate Reflection
Note TakingNote Taking
Voices Off Eyes focused on board Writing Down Notes
Red is Dead
Voices Off Eyes focused on board Writing Down Notes
Red is Dead
Main Idea: Main Idea:
Earth’s atmosphere is a blanket of gases that supports & protects life.
Earth’s atmosphere is a blanket of gases that supports & protects life.
Smaller ideas:Smaller ideas:
1.1 Earth’s Atmosphere supports life.
1.2 The sun supplies the atmosphere’s energy.
1.3 Gases in the atmosphere absorb radiation.
1.4 Human activities affect the atmosphere.
1.1 Earth’s Atmosphere supports life.
1.2 The sun supplies the atmosphere’s energy.
1.3 Gases in the atmosphere absorb radiation.
1.4 Human activities affect the atmosphere.
First 20 Minutes todayFirst 20 Minutes today
Quiet Independent work time Pages 1-4 due Fri 2/19 Take out cover sheet packets
I will be checking parent signatures
Quiet Independent work time Pages 1-4 due Fri 2/19 Take out cover sheet packets
I will be checking parent signatures
Vocab WordsVocab Words
Absorption- When light hits a surface and heats that surface.
Reflection- When light hits a surface and bounces off.
Equilibrium- A normal state
Absorption- When light hits a surface and heats that surface.
Reflection- When light hits a surface and bounces off.
Equilibrium- A normal state
1.1 Earth’s Atmosphere Supports life.
1.1 Earth’s Atmosphere Supports life.
Atmosphere: A whole layer of air
that Surrounds earth.
• Ends at 300 mi. above Earth’s surface
• Keeps Earth warm.• Transports Energy.
Atmosphere: A whole layer of air that Surrounds earth.
• Ends at 300 mi. above Earth’s surface
• Keeps Earth warm.• Transports Energy.
How thick is Earth’s Atmosphere?How thick is Earth’s Atmosphere?
Earth = Peach Earth’s Atmosphere = Peach Fuzz
Characteristics of the Atmosphere:
Characteristics of the Atmosphere:
Altitude: Distance above sea level.
Altitude: Distance above sea level.
Air becomes thinner as altitude increases.
Density = Mass/volume
Density = Mass/volume
Atmosphere’s density decreases as you travel upward.
More Gas = Dense
> (greater) Mass/Volume
Less Gas = Less Dense
< (less) Mass/Volume
Materials in the atmosphere:Materials in the atmosphere:
Recipe for Air:• Nitrogen gas: 78% • Oxygen gas: 21 %• Argon gas• Carbon dioxide• Water vapor varies
Recipe for Air:• Nitrogen gas: 78% • Oxygen gas: 21 %• Argon gas• Carbon dioxide• Water vapor varies
Exact amounts of gases can change depending on time of day, location, season...
Ongoing Processes: Carbon Cycle (p. 13)
Ongoing Processes: Nitrogen Cycle (p. 13)
Ongoing Processes: Water Cycle (p. 13)
Science Starter: Science Starter:
Before we start class, please:(1)Pick up your science textbook.
(1)Take our your Earth’s Atmosphere Daily Work Packet.
Before we start class, please:(1)Pick up your science textbook.
(1)Take our your Earth’s Atmosphere Daily Work Packet.
Science Starter: Science Starter:
(1)What are the 3 methods of energy movement?
(2) Moving from the Earth’s surface towards space, name the atmosphere’s layers in order.
(1)What are the 3 methods of energy movement?
(2) Moving from the Earth’s surface towards space, name the atmosphere’s layers in order.
1.2 Energy from the sun heats the Atmosphere
1.2 Energy from the sun heats the Atmosphere
All the energy around us comes from the sun.
All the energy around us comes from the sun.
Sun’s Energy Absorbed
• 50% Absorbed by Earth’s Surface
•20% Absorbed by Clouds & Atmosphere
Sun’s Energy Reflected
•25% Reflected by Clouds & Atmosphere
•5% Reflected by Earth’s Surface
Clouds Reflect and Absorb Radiation
Clouds Reflect and Absorb Radiation
Solar RadiationSolar Radiation
The Atmosphere Moves Energy from place to place
The Atmosphere Moves Energy from place to place
Radiation: Travel of heat energy by waves through space.
Conduction: Transfer of heat energy by direct contact.
Convection: Transfer of heat energy by the movement of gas or liquid.
Radiation: Travel of heat energy by waves through space.
Conduction: Transfer of heat energy by direct contact.
Convection: Transfer of heat energy by the movement of gas or liquid.
http://www.think-energy.co.uk/ThinkEnergy/11-14/activities/
Energy Transfer as HeatEnergy Transfer as Heat
Diagram: p. 18
Classify the following as examples of either: conduction, convection or radiation.
Classify the following as examples of either: conduction, convection or radiation.
(1) Blacktop in the parking lot is warmed by sun.
(2) Air directly above the blacktop gains heat energy from warm blacktop.
(3) The bottom of a fry pan becomes hot as it sits on a hot burner.
(4) The sand on the beach burns the bottom of your feet.
(5) The bubbles of goo rise to the top of your lava lamp.
(1) Blacktop in the parking lot is warmed by sun.
(2) Air directly above the blacktop gains heat energy from warm blacktop.
(3) The bottom of a fry pan becomes hot as it sits on a hot burner.
(4) The sand on the beach burns the bottom of your feet.
(5) The bubbles of goo rise to the top of your lava lamp.
Atmosphere’s temp. layersAtmosphere’s temp. layers
Diagram(p. 20)
Troposphere: “Turning”• Nearest Earth’s surface• Heated by the ground• Temp. as you in elevation• 80% of total mass of Atmosphere
Troposphere: “Turning”• Nearest Earth’s surface• Heated by the ground• Temp. as you in elevation• 80% of total mass of Atmosphere
Stratosphere: “Spreading out”• Contains ozone molecules• Absorbs radiation energy from the
sun• Temp. as you elevation
Stratosphere: “Spreading out”• Contains ozone molecules• Absorbs radiation energy from the
sun• Temp. as you elevation
Mesosphere: “Middle”• Very thin air (< .1% of
Atmosphere’s mass)• Heated by stratosphere below• Temp. as you elevation
Mesosphere: “Middle”• Very thin air (< .1% of
Atmosphere’s mass)• Heated by stratosphere below• Temp. as you elevation
Thermosphere: “heat”• Begins at 56 mi. above Earth• Air becomes less & less dense• Absorbs solar radiation• Temp. as you elevation
Thermosphere: “heat”• Begins at 56 mi. above Earth• Air becomes less & less dense• Absorbs solar radiation• Temp. as you elevation
Analysis: Analysis: (1) Airplanes fly
near the top of the troposphere. Is it more important to heat or cool the passenger cabins? Explain.
(1) Airplanes fly near the top of the troposphere. Is it more important to heat or cool the passenger cabins? Explain.
(2) Ideally, earth should lose about the same amount of energy as it absorbs from the sun. Does energy move from Earth’s surface and atmosphere out to space by radiation, convection or conduction? Explain.
(2) Ideally, earth should lose about the same amount of energy as it absorbs from the sun. Does energy move from Earth’s surface and atmosphere out to space by radiation, convection or conduction? Explain.
Science Starter: Science Starter:
Before we start class, please:(1)Pick up your science textbook.
(1)Take our your Earth’s Atmosphere Daily Work Packet.
Before we start class, please:(1)Pick up your science textbook.
(1)Take our your Earth’s Atmosphere Daily Work Packet.
Science Starter: Science Starter:
(1) Name 4 ways gases can affect radiation.
(2) What type of radiation is absorbed by ozone?
(3) How do green house gases keep earth warm?
(1) Name 4 ways gases can affect radiation.
(2) What type of radiation is absorbed by ozone?
(3) How do green house gases keep earth warm?
1.3 Gases in the atmosphere absorb Radiation
1.3 Gases in the atmosphere absorb Radiation
Atmosphere can Affect light in 4 ways:
• Absorb light• Reflect light• Let light pass through• Give off light
Atmosphere can Affect light in 4 ways:
• Absorb light• Reflect light• Let light pass through• Give off light
Electromagnetic SpectrumElectromagnetic Spectrum
The Ozone Layer protect life from Harmful Radiation
The Ozone Layer protect life from Harmful Radiation
• In stratosphere• Absorbs harmful
radiation (Uv) from sun
• In stratosphere• Absorbs harmful
radiation (Uv) from sun
Diagram (p. 23)
Science Starter:Science Starter:For the first ~25 min. of class you
will quiet, individual work time to work on the following:
• Finish (& hand in) absorption & radiation lab
• Vocab. organizer• Atmosphere (ch 1) readings & daily
work packet
For the first ~25 min. of class you will quiet, individual work time to work on the following:
• Finish (& hand in) absorption & radiation lab
• Vocab. organizer• Atmosphere (ch 1) readings & daily
work packet
By the end of today you should be able to explain:
By the end of today you should be able to explain:
1. What is the greenhouse effect?2. What are greenhouse gases
(including examples)?3. What could happen if humans
increase the amount of greenhouse gases in earth’s atmosphere?
1. What is the greenhouse effect?2. What are greenhouse gases
(including examples)?3. What could happen if humans
increase the amount of greenhouse gases in earth’s atmosphere?
What is the Greenhouse Effect?
What is the Greenhouse Effect?
Keeps Earth warm. Gases in earth’s
atmosphere that slow movement of Heat energy away from earth’s surface (jacket)
Keeps Earth warm. Gases in earth’s
atmosphere that slow movement of Heat energy away from earth’s surface (jacket)
Diagram (p. 25)
What are Greenhouse gases?
What are Greenhouse gases?
Analysis:Analysis:
(1) What would happen to earth’s temperature if the amount of greenhouse gases in the atmosphere changed?
(1) What would happen to earth’s temperature if the amount of greenhouse gases in the atmosphere changed?