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ScienceMakers Toolkit Manual - The History Makers

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D. Earth and Space Science - Earth and space science focuses on science facts, concepts, principles, theories,<br />

and models that are important for all students to know, understand, and use.<br />

M.D.1 Structure of the earth system<br />

• Lithospheric plates on the scales of continents and oceans constantly move at rates of centimeters per year in<br />

response to movements in the mantle. Major geological events, such as earthquakes, volcanic eruptions, and<br />

mountain building, result from these plate motions.<br />

H.D.4 Origin and evolution of the universe<br />

• <strong>The</strong> origin of the universe remains one of the greatest questions in science. <strong>The</strong> “big bang” theory places the<br />

origin between 10 and 20 billion years ago, when the universe began in a hot dense state; according to this<br />

theory, the universe has been expanding ever since.<br />

• Early in the history of the universe, matter, primarily the light atoms hydrogen and helium, clumped together<br />

by gravitational attraction to form countless trillions of stars. Billions of galaxies, each of which is a<br />

gravitationally bound cluster of billions of stars, now form most of the visible mass in the universe.<br />

• Stars produce energy from nuclear reactions, primarily the fusion of hydrogen to form helium. <strong>The</strong>se and<br />

other processes in stars have led to the formation of all the other elements.<br />

E. Science and Technology - An understanding of science and technology establishes connections between<br />

the natural and designed world, linking science and technology.<br />

M.E.2 Understandings about science and technology<br />

• Scientifi c inquiry and technological design have similarities and differences. Scientists propose explanations<br />

for questions about the natural world, and engineers propose solutions relating to human problems, needs,<br />

and aspirations. Technological solutions are temporary; technologies exist within nature and so they cannot<br />

contravene physical or biological principles; technological solutions have side effects; and technologies<br />

cost, carry risks, and provide benefi ts.<br />

• Many different people in different cultures have made and continue to make contributions to science and<br />

technology.<br />

• Science and technology are reciprocal. Science helps drive technology, as it addresses questions that demand<br />

more sophisticated instruments and provides principles for better instrumentation and technique.<br />

Technology is essential to science, because it provides instruments and techniques that enable observations<br />

of objects and phenomena that are otherwise unobservable due to factors such as quantity, distance, location,<br />

size, and speed. Technology also provides tools for investigations, inquiry and analysis.<br />

H.E.2 Understandings about science and technology<br />

• Scientists in different disciplines ask different questions, use different methods of investigation, and accept<br />

different types of evidence to support their explanations. Many scientifi c investigations require the contributions<br />

of individuals from different disciplines, including engineering. New disciplines of science, such as<br />

geophysics and biochemistry often emerge at the interface of two older disciplines.<br />

• Science often advances with the introduction of new technologies. Solving technological problems often results<br />

in new scientifi c knowledge. New technologies often extend the current levels of scientifi c understanding<br />

and introduce new areas of research.<br />

• Creativity, imagination, and a good knowledge base are all required in the work of science and engineering.<br />

225<br />

National<br />

Standards

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