Name: Period: Greenhouse Packet
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1 Greenhouse Packet Component Guiding Questions (questions you should be able to answer by the end of this packet before taking the test!) 1. What are the three main waves that hit earth from the sun and what are their main differences? 2. What is the path infrared radiation can take as it enters our atmosphere? 3. What would happen to Earth if we had MORE greenhouse gases in the atmosphere? 4. What would happen to Earth if we had LESS greenhouse gases in the atmosphere? Agenda (fill in the squares and circles as you complete everything on the agenda) Car Scenario 5 Minutes Page 2 Using prior knowledge and google to answer the analysis questions. PHET Interactive 30 Minutes Page 2 4 Using a computer (it might not work on a phone), complete the PHET interactive on the Greenhouse Effect and answer the following questions. Greenhouse Note Video 12 Minutes Page 5 Watch the Greenhouse notes video while following along on the notes page. Global Temp Graph & Predictions 30 Minutes Page 6 7 Using the website on the science page, determine what the future temperatures of different places might be. Answer the questions associated with the activity. Show your science teacher your packet! Greenhouse Drawing 15 Minutes Page 8 Using what you learned, complete the drawing and questions. Guiding Questions 7 Minutes Page 9 Answer the guiding questions Show your science teacher your packet! Study for your quiz. Know your notes! Quiz 10 Minutes Fill in the date of your quiz Show your science teacher your packet! Take the Greenhouse Layer Quiz 70% or Above 69% or Under Move on to the Global Warming Packet Correct the quiz Study your notes Ask any questions you might have Retake the Greenhouse quiz TOMORROW Unit Test will cover 4 packets: Layers of the Atmosphere, Ozone, Greenhouse, and Global Warming 1
2 Car Scenario 1. Explain the temperature difference inside a car (car is turned off and windows are up) and outside a car in the summer. 2. How hot will the inside of a car get if it's outside? (Google it) 3. Why does a car get so hot in the above scenario? The Greenhouse Effect PHET Simulation Procedure: 1. Click the Greenhouse PHET interactive on the science website 2. Click the play button ( ) in the middle of the screen 3. A file should ve downloaded and should show up at the bottom of your screen. Press Keep 4. Click the file that says greenhouse_en.jnlp 5. When a new screen should open. 6. Follow directions in parts 1 2 below to complete the simulation Part I: Glass Layers Select the Glass Layers tab. Uncheck the View all photons box. 1) What do the yellow stars represent? 2) What do the red stars represent? Number of Glass Panes Temperature ( F) Path of Sunlight Photons (Start/End/Direction of Travel?) Path/Behavior of Heat Photons (Start/End/Direction/Change in Direction?) ) What do the sunlight photons do when they hit glass panes from the top? 2
3 4) What do the infrared photons do when they hit glass panes from the bottom? Be specific. 5) Based on the observations of the photons, why does the temperature go up so much? 6) What happens to the temperature as additional glass panes are added? 7) Explain why this happens by observing the photons. 8) In order to better insulate your house, would it be better to use single, double, or triple paned windows? Explain. 9) Prediction: How does what you have discovered regarding greenhouses might apply to the Earth and its atmosphere. Part II: Greenhouse Effect By changing the Atmosphere during setting on the right side of the program, complete the chart below. Make sure you wait a few seconds for the TEMPERATURE to change and to reach a STABLE point. Once the chart is completed, use it to answer the questions below Atmosphere Level Greenhouse Concentrations (ppm=parts per million) Temperature ( F) Ice Age 1750 Today Adjustable Adjustable H₂O? CO₂ 180 ppm H₂O 70% relative humidity CO₂ ppm H₂O % relative humidity CO₂ ppm Lots None CH₄ ppm N₂O ppm CH₄ ppm N₂O ppm CH₄ ppm N₂O ppm 3
4 Analysis Questions: 1. How has the greenhouse gas concentration (CO 2, CH 4, N 2 O) changed over time? 2. How does the greenhouse gas concentration impact temperature? 3. Why do we not want our greenhouse gas concentration levels to raise even further? Try to be specific 4. How is the greenhouse effect similar to blankets on a bed? Think about what happens with either too many or too few blankets. Lesson was taken from the Greenhouse Effect Basics activity located at the following site. 4
5 Greenhouse Effect Notes From the Sun We receive the following UV Radiation gives us vitamin D Blocked by the Ozone Layer Light allows us to see Not blocked at all (unless there is an eclipse) Infrared Radiation provides heat Blocked/trapped by the greenhouse gases Greenhouse Effect Process by which heat is trapped close to the Earth by greenhouse gases. Blanket wrapped around the Earth Greenhouse gases Carbon dioxide, methane, water vapor, and nitrous oxide Location: Troposphere Importance: Gases absorb and emit infrared radiation Increased greenhouse gases = thicker blanket = warmer temperatures Infrared Radiation Definition: Less energy than visible light Responsible for keeping earth warm Anything that gives off heat emits / gives off infrared radiation Options as it enters our atmosphere Reflected by Atmosphere Bounces back out to space Absorbed by Earth s Surface Warms Earth Reflected by Earth Bounces off of Earth and heads back out to space Options as it heads back out to space Go out to space Re emitted into our atmosphere and towards Earth by the Greenhouse Gases Pros and Cons of the Greenhouse Effect Pros: Keeps earth warm Cons: Earth can become too warm Future Change If greenhouse gases increases A dditional infrared trapped Global temperatures would increase Impacts agriculture, energy, water supplies, health, ecosystems, forests, and much more! If greenhouse gases decreases Infrared isn t trapped Hot during day Cold during night Extreme shifts in temperature 5
6 Predictions on Graphs Watch the Predicting Using Graphs Video on the link provided on the website. Answer the following questions: 1. What is the first thing you do when you look at a graph? 2. What are the two things you can do to a graph in order to predict unknown information that extends past the information given? Global Temperature Graph and Predictions Procedure: 1. Fill in the missing years on the X Axis (pay attention to the dates of previous years) 2. Applying what you have learned in the previous graphing video, complete the graph for the next 80 years by drawing in the rest of the line. 3. Make a prediction on what will happen in the future by answering the questions below. 4. QUESTION: Why did you draw the graph like you did? Why do you think this will happen? 6
7 Click on the How hot will it get in your lifetime? interactive on the science website. 5. How much has the temperature risen on the Earth since you were born? 6. How much will it increase by the time you retire? 7. Click the arrow on the left to go to the end of the interactive. Compare your predicted graph from page 6 with the one on the screen. Were they similar? If not, do you think you need to redo your prediction? Why or why not? Global Warming Interactive Click the Global Warming Interactive on the science website. In this activity you will be entering names of cities throughout the US and seeing how those temperatures will change by the year Type the location into the box that states I live in. After hitting enter, look at the bottom of the map. The first temperature given is for how warm it is in the summer currently. The second temperature is for what the temperature may be in The interactive also tells you what location currently has that temperature in the summer. Look at the chart below as an example. You can see that Aurora currently has an average temperature of F. In 2100, the average temperature will rise to 93.99F and be the same as what summers feel like in Braunfels, TX. Complete the chart below. YOU NEED DIFFERENT CITIES THEN THE PEOPLE YOU ARE WORKING WITH!!! Present Future (2100) Temperature Location Temperature Change Temperature Temperature / Location Aurora, IL F Braunfels TX F F QUESTION: Imagine you are still alive, and our temperature reaches the projected point. Explain how your world, your summer, and our resources would be different. Be very specific. 7
8 Greenhouse Drawing 1. In the space below draw the path infrared radiation takes from the sun into our atmosphere Make sure you include the following The Sun The Earth Greenhouse Gases Clouds 4 Potential Paths 2. How would your drawing above change if we had additional greenhouse gases in the atmosphere? 3. How would your drawing above change if we had less greenhouse gases in the atmosphere? 4. Why the greenhouse effect necessary? 5. How would our world be different if we didn t have the greenhouse effect? 8
9 Guiding Questions 1. What are the three main waves that hit earth from the sun and what are their main differences? (The answer is NOT UVA, UVB, and UVC) Type of Wave Description / Difference 2. What is the path infrared radiation can take as it enters our atmosphere? DRAW IT! 3. What would happen to Earth if we had MORE greenhouse gases in the atmosphere? Be specific. How would your drawing change AND how would the temperature of Earth change? 4. What would happen to Earth if we had LESS greenhouse gases in the atmosphere? Be specific. How would your drawing change AND how would the temperature of Earth change? STUDY FOR YOUR QUIZ, KNOW YOUR NOTES! KEEP PACKET! 9
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