Skill: Models & Technological Design



NameScience Morning BoardsSkill: Models & Technological DesignMonday, December 3, 2012 318389057467549599855746751. Meredith wants to use a model to study how interesting formations such as arches, towers, and balanced rocks are made by erosion. She learns in science class that these can form when different layers of the rock erode at different rates.Meredith decides to use running water to cause the erosion. To model the rock, she can choose from the following:potting soilclaypebblesplastersandHow should Meredith make her model of the rock? by using each material to make a separate modelby arranging the possible materials in layers, one on top of the otherby mixing all the materials together evenlyby arranging the possible materials in strips, one next to the other Tuesday, December 4, 20122. The main products of technological development are?inventions, processes and systems. The main products of scientific investigation are?_______. tools, machines, and datafacts, laws and theoriesinventions, processes and systemstechnology, science, and philosophyWednesday, December 5, 20123. Science and technology often develop simultaneously. That is, scientific discoveries often lead to the development of new technology, and technological devices allow new scientific discoveries to be made.What technological design allowed scientists to determine differences in the internal structures of plant and animal cells? TelescopesC. seismographsMicroscopesD. barometerThursday, December 6, 20124. Trey was asked to build a working model of a landform for a science project. He chose to build a model of a volcano.Trey formed a base out of clay and then painted the model so it resembled a cinder cone volcano.Finally, Trey mixed baking soda, vinegar, and red food coloring in the base, so it mimicked lava flowing out of the volcano. Once he was finished with his project, Trey's teacher asked how useful his model was.What factor best determines the usefulness of the model? how closely the model's color matches the real worldhow closely the model's size matches the real worldhow closely the model's behavior matches the real worldhow closely the model's composition matches the real worlFriday, December 7, 2012 5. Dr. Ray has developed a new way to remove oil from wetlands in the event of an oil spill. To test his new process, Dr. Ray builds a scale model of a wetland in his lab and pours a small amount of oil into it. He then observes the rate at which his process is able to remove the oil from the model.Why did Dr. Ray use a model? Because his model makes the process more complicated.Because real wetlands are too large to be affected by oil.Because dumping oil in a real wetland would be dangerous.Because real wetlands are too complicated for his process to work. ................
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