Transcript 12-6-2016x
12/06/2016 Tuesday Science Log 8 Tuesday: What is the temperature range for water to be a liquid, in degrees Celsius? 11. Assess progress More beads in the vial, the higher the atmospheric pressure will be. Composition and atmospheric pressure determines the planet vial 11. Assess progress 1 = Venus = Mostly CO2 and the pressure is huge (92 bars) orange 2 = Earth: CO2 is increasing on Earth, but still less than one bead. 3 = Mars: 4 = Mercury: has no atmosphere therefore no pressure. 12. Correlation Predict how many beads you think would accurately represent the atmosphere of Jupiter, using the same scale represented by the four vials. Jupiter's Atmosphere 12. Correlation Predict how many beads you think would accurately represent the atmosphere of Jupiter, using the same scale represented by the four vials. Jupiter's Atmosphere What factor accounts for Jupiter’s huge atmosphere? 12. Correlation Predict how many beads you think would accurately represent the atmosphere of Jupiter, using the same scale represented by the four vials. Jupiter's Atmosphere What factor accounts for Jupiter’s huge atmosphere? It is a missive planet with very strong gravity to hold its atmosphere. 13. Correlation We found that temperature ranges and atmospheric compositions of the four terrestrial planets vary widely. Think about the relationship between atmosphere and temperature in order to answer these questions. 13. Correlation 1. What might happen to the temperature range and average temperature on Mercury if it had an atmosphere similar to the atmosphere on Earth? 2. What might happen to the temperature range and average temperature on Venus if it had no atmosphere? 3. What might happen to Earth if it had an atmosphere like Mars? 13. Correlation 1. What might happen to the temperature range and average temperature on Mercury if it had an atmosphere similar to the atmosphere on Earth? 2. What might happen to the temperature range and average temperature on Venus if it had no atmosphere? 3. What might happen to Earth if it had an atmosphere like Mars? 13. Correlation 1. What might happen to the temperature range and average temperature on Mercury if it had an atmosphere similar to the atmosphere on Earth? The average temperature would increase. The temperature range would be smaller. 2. What might happen to the temperature range and average temperature on Venus if it had no atmosphere? 3. What might happen to Earth if it had an atmosphere like Mars? 13. Correlation 1. What might happen to the temperature range and average temperature on Mercury if it had an atmosphere similar to the atmosphere on Earth? 2. What might happen to the temperature range and average temperature on Venus if it had no atmosphere? 3. What might happen to Earth if it had an atmosphere like Mars? 13. Correlation 1. What might happen to the temperature range and average temperature on Venus if it had no atmosphere? The temperature would vary from very hot to very cold, more like Mercury today. Venus is farther from the Sun than Mercury, so it probably wouldn’t get as hot in the sun, but it would get colder on the side away from the Sun. 2. What might happen to Earth if it had an atmosphere like Mars? 13. Correlation 1. What might happen to Earth if it had an atmosphere like Mars? 13. Correlation 1. What might happen to Earth if it had an atmosphere like Mars? The thin atmosphere would increase the range between its maximum and minimum temperatures. The average temperature would be lower because heat wouldn’t be trapped as much. 14. Record vocabulary Atmosphere: a layer of gases that surround an object held in place by gravity Make sure you add to it about temperature and pressure. How do they affect the atmosphere? 15. Basic needs An Earthlike planet will have the potential to support life. Our list of Earthlike conditions includes atmosphere and temperature, both of which influence the probability of life. Liquid water is also a critical condition to look for on an Earthlike planet. Which of the planets in the solar system might have liquid water? 15. Basic needs An Earthlike planet will have the potential to support life. Our list of Earthlike conditions includes atmosphere and temperature, both of which influence the probability of life. Liquid water is also a critical condition to look for on an Earthlike planet. Which of the planets in the solar system might have liquid water? Remember water freezes as 0 degrees C and vaporizes at 100 degrees C. 16. Exoplanets We haven't talked about it yet, but there are planets, called exoplanets, that orbit stars outside of the solar system. In the rest of the Milky Way galaxy and probably throughout the universe, there are other planetary systems. Exoplanets: a planet circling a star other than the Sun (put in vocab and index) 16. Exoplanets page 93 Exoplanets: a planet circling a star other than the Sun (put in vocab and index) Exoplanets 19. Focus Question 8.2 Return to your focus question 8.2 page 89 Which planet is most like Earth? Discuss in your groups and then answer the question. 19. Focus Question 8.2 Should have included” Mars is the solar system planet that is most like Earth and might support life. An Earthlike planet should have an average temperature between 0 degrees C and 100 degrees C in order for liquid water to exist. An atmosphere is necessary to maintain a temperature range that can support life. 8.3 Where is the water? Astronomers have a particular interest in the location and concentration of water in the solar system. Water is a key to understanding the history, composition, and condition of planets, satellites, and other objects in the solar system. A number of NASA missions have had questions about water as important objectives. 1. Water Why do you think looking for water is the focus of may NASA missions? 1. Water Why do you think looking for water is the focus of may NASA missions? Any solar system object that has water, or may have had water at one time, could provide evidence of life. 2. Focus Question FQ 8.3 page 94 Where is there water in the solar system? Record this in your notebooks, take a minute and discuss in your groups and then make a list of places in the solar system where there might be water. Leave room to answer more later 3. Water on Earth Look at “Landforms of the United States” in our purple books Study the topography of the US, looking particularly at places where we know water is present: The ocean, the Great lakes, and major rivers across the country. Next go to Earth Landforms, Satellite images Look at the detailed captions. 4. False-color image Some images are manipulated or enhanced to amplify specific wavelengths of light, even wavelengths that are outside the visible spectrum. Heat can be imaged using infrared wavelengths. This is how night-vision goggles work. Technicians substitute different colors for light of various wavelengths to make the image look somewhat natural, like image N, California. The green in this image represents vegetation. 4. false-color images What do you think the color pink represents? 4. false-color images What do you think the color pink represents? The description says it shows heat radiation of urban area. The red areas are building roofs or concrete. Developed areas radiate more heat (infrared light) than natural vegetation areas. 4. Analyze Earth images ME Sheet 44, Water on Earth, goes on page 95 Record data a)What do you see on image A, Brazil b) Next to Landform River/Stream put an A for image A c)Put an A in clouds as well d)Move to the next image writing B by each water-related landform that applies 4. Analyze Earth images Sheet 44, Water on Earth, goes on page 95 Record data of water Write a brief description for each water-related landform in the “Description” column 6. Birds-eye view You are looking at Earth from a birds-eye view What have you done that is similar to this? 6. Birds-eye view You are looking at Earth from a birds-eye view What have you done that is similar to this? This is like the first investigation when we were looking at the school. 6. Birds-eye view You are looking at Earth from a birdseye view What have you done that is similar to this? This is like the first investigation when we were looking at the school. Look back in your composition books at what you have learned about birds-eye views and changes in altitude. 6. Birds-eye view What did you notice as you got higher and higher in altitude? 6. Birds-eye view What did you notice as you got higher and higher in altitude? It was harder to recognize very small structures such as houses and cars. All you could see were the really big natural features such as mountains, rivers, and the ocean. 6. Birds-eye view How does that relate to our search for water in other places in the solar system? We have to recognize waterrelated features from a bird’s-eye view, and we will probably see only very large water-related structures. 7. Earth’s landforms Why were we looking at pictures of Earth if we are looking for water in other places in the solar system? 7. Earth’s landforms Why were we looking at pictures of Earth if we are looking for water in other places n the solar system? To identify a water-related landform on another planet, we need to know what they look like from a bird’s-eye view on Earth. pages Landform vocab sheet 45, goes on page 96 Water in the Solar system, NBS 46, goes on page 97