Download Earth Science. Geology, the Environment, and the Universe by McGraw-Hill Education PDF

By McGraw-Hill Education

This source bargains 60 well known, validated labs and helps hands-on adventure for college students with varied skills. 17 labs are designed to be open-ended "Design your individual" labs; 10 are mapping labs that would create possibilities to reinforce crucial earth technological know-how abilities.

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A. 48 g C. 3 g B. 10 g D. 58 g 26 6. If a conclusion is supported by data, but does not support an original hypothesis, what should a scientist do? A. The scientist should reevaluate the original hypothesis. B. The scientist should redesign the experiment. C. The scientist should not change anything. D. The scientist should modify the conclusion. Chapter 1 • Assessment 7. This sign was found at the entrance to a chemistry laboratory. Why is this an important sign? A. Goggles help chemists see better.

The water had surged up over 5 m deep, so he relied on visual estimates and photos for documentation. With each measurement, he recorded the location on a Global Positioning System (GPS). 20 Chapter 1 • The Nature of Science Jordon R. S. Navy via Getty Images Figure 1: The tsunami destroyed many homes and buildings, leaving few of the structures standing. After a six-day study of the devastation, Borrero had more than 150 data points. 2 km inland. Using models It is impossible and unethical to simulate natural disasters on an actual scale, so scientists use the data collected from real incidents to create models of those events to learn more about how nature behaves.

Analysis and conclusions New ideas in science are carefully examined by the scientist who made the initial discovery and by other scientists in the same field. Processes, data, and conclusions must be examined to eliminate influence by expectations or beliefs, which is called bias. During a scientific experiment, all data are carefully recorded. Once an experiment is complete, graphs, tables, and charts are commonly used to display data. These data are then analyzed so that a conclusion can be drawn.

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