1 00:00:00,000 --> 00:00:04,320 NASA Connect asked us to show you this program's activity. 2 00:00:04,320 --> 00:00:07,240 It's an introduction to systems. 3 00:00:07,240 --> 00:00:09,400 You can find the activity in the educator guide, 4 00:00:09,400 --> 00:00:12,560 which can be downloaded at the NASA Connect website. 5 00:00:12,560 --> 00:00:15,480 Here are the main objectives. 6 00:00:15,480 --> 00:00:19,840 Students will be able to one, model a familiar Earth system 7 00:00:19,840 --> 00:00:22,520 by using standard system symbols. 8 00:00:22,520 --> 00:00:25,920 Number two, evaluate the global water cycle 9 00:00:25,920 --> 00:00:29,240 by comparing it to a working model. 10 00:00:29,240 --> 00:00:31,160 In the activity, you will be asked 11 00:00:31,160 --> 00:00:34,760 to create a system diagram or flow chart of one 12 00:00:34,760 --> 00:00:37,360 of the Earth subsystems you identified earlier 13 00:00:37,360 --> 00:00:38,360 in the program. 14 00:00:38,360 --> 00:00:42,880 Here is an example of how to create a system diagram. 15 00:00:42,880 --> 00:00:45,280 Class, let's model how to represent 16 00:00:45,280 --> 00:00:47,400 soil being warmed by the sun. 17 00:00:47,400 --> 00:00:50,080 Follow along with me using your journal. 18 00:00:50,080 --> 00:00:53,760 Students that have personal digital assistants, or PDAs, 19 00:00:53,760 --> 00:00:58,520 should use PicoMap to draw their system diagram. 20 00:00:58,520 --> 00:01:02,680 The sun is considered the source. 21 00:01:02,680 --> 00:01:07,600 Soil is the destination. 22 00:01:07,600 --> 00:01:11,240 Heat energy flows from the sun to the soil. 23 00:01:17,360 --> 00:01:20,600 Class, what factors might affect how much heat energy 24 00:01:20,600 --> 00:01:23,240 is absorbed by the soil? 25 00:01:23,240 --> 00:01:23,960 Kyle? 26 00:01:23,960 --> 00:01:25,160 Seasons. 27 00:01:25,160 --> 00:01:26,280 Great answer. 28 00:01:26,280 --> 00:01:27,960 Anyone else? 29 00:01:27,960 --> 00:01:28,760 Abby? 30 00:01:28,760 --> 00:01:30,760 Clouds and time of day. 31 00:01:30,760 --> 00:01:31,640 Good answer, Abby. 32 00:01:31,640 --> 00:01:34,440 Seasons, clouds, and time of day all 33 00:01:34,440 --> 00:01:38,080 affect how much heat energy is absorbed by the soil. 34 00:01:38,080 --> 00:01:41,320 Other conditions include land cover 35 00:01:41,320 --> 00:01:43,160 and atmospheric conditions. 36 00:01:43,160 --> 00:01:46,520 Using circles to represent conditions or factors that 37 00:01:46,520 --> 00:01:49,440 might affect the system, let's add the three factors. 38 00:01:49,880 --> 00:01:59,200 Seasons, time of day, and clouds. 39 00:02:03,200 --> 00:02:05,800 After your teacher completes the model example, 40 00:02:05,800 --> 00:02:09,080 you will gain more experience with system diagrams 41 00:02:09,080 --> 00:02:12,280 by completing a system diagram or flow chart for one 42 00:02:12,280 --> 00:02:15,400 of your systems you listed while watching this program. 43 00:02:15,400 --> 00:02:17,640 Students, please take a moment to review 44 00:02:17,680 --> 00:02:18,720 this program. 45 00:02:18,720 --> 00:02:20,920 Students, you are strongly encouraged 46 00:02:20,920 --> 00:02:23,880 to develop your own symbols or representations. 47 00:02:23,880 --> 00:02:26,360 Be prepared to write a short paragraph 48 00:02:26,360 --> 00:02:28,320 summarizing your system. 49 00:02:28,320 --> 00:02:31,320 Now you are ready to take on the challenge of developing 50 00:02:31,320 --> 00:02:34,640 a system diagram for one of Earth's subsystems. 51 00:02:34,640 --> 00:02:37,720 You will work in groups to read the technical passage, 52 00:02:37,720 --> 00:02:41,840 The Global Water Cycle, which is located in the educator guide. 53 00:02:41,840 --> 00:02:44,040 To help you visualize the water cycle, 54 00:02:44,040 --> 00:02:47,160 you can download a great picture at the United States 55 00:02:47,200 --> 00:02:49,480 Geological Society website. 56 00:02:49,480 --> 00:02:52,840 Or you can access a wonderful animation of the water cycle 57 00:02:52,840 --> 00:02:54,240 at the following website. 58 00:02:54,240 --> 00:02:57,720 Using your own symbols, create a systems diagram 59 00:02:57,720 --> 00:03:00,080 for the Global Water Cycle as described 60 00:03:00,080 --> 00:03:01,640 in the reading passage. 61 00:03:01,640 --> 00:03:06,080 Students, don't forget to label your sources and destinations 62 00:03:06,080 --> 00:03:08,600 and label the direction of the flow. 63 00:03:08,600 --> 00:03:12,480 Have one or two groups share their diagrams and explanations 64 00:03:12,480 --> 00:03:13,760 to your class. 65 00:03:13,760 --> 00:03:16,200 Finally, students, you can evaluate 66 00:03:16,240 --> 00:03:18,440 other groups' system diagrams 67 00:03:18,440 --> 00:03:21,360 using the activity-specific scoring tool 68 00:03:21,360 --> 00:03:23,800 that can be found in the educator guide. 69 00:03:23,800 --> 00:03:25,960 Special thanks to the AIAA, 70 00:03:25,960 --> 00:03:28,600 student branch from George Washington University, 71 00:03:28,600 --> 00:03:30,920 for helping us out on this activity. 72 00:03:30,920 --> 00:03:33,000 Thanks, we had a great experience. 73 00:03:33,000 --> 00:03:34,840 And we encourage teachers to visit our website 74 00:03:34,840 --> 00:03:37,160 to learn more about the AIAA Mentorship Program 75 00:03:37,160 --> 00:03:38,000 in your area.