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Sem A Unit 1

SemA U1 Test Review

QuestionAnswer
1. What does an earth scientist study? The planet earth, including geology, oceanography, meteorology, climatology, and astronomy
2. What types of evidence help earth scientists determine the age of the earth? Many different techniques:Rock layers and fossil distribution,Measuring salt content in oceans,Physics of cooling of the earth,Radioactive dating
3. What are the parts of the scientific method? Form hypotheses,Perform experiments,Gather and analyze data,Form conclusions and interpret data,Alter the hypothesis or form a new hypothesis,Communicate (share the information with others)
4. Why do people study earth science? Find and manage valuable resources,Learn about storms/hurricanes,Improve our daily lives (e.g. watching the weather on the news),Understand how Earth works,Learn about planetary changes
5. About how old do scientists think the earth is? About 4.5 billion years
6. In which sphere would mountains be categorized? Geosphere
7. According to the ideas of William Smith, which rock layers are the same age? The layers of rock that contain similar fossils
8. What does the hydrosphere include? The liquid layer of the earth, made up of the earth´s waters, including oceans, streams, rivers, lakes, etc.
9. What is the cryosphere? All frozen water, on land and sea, on earth
10. How can the geosphere affect the atmosphere? Volcanic eruptions throw ash the atmosphere distributes across the globe and causes Carbon dioxide replenishes the atmosphere
11. Which two spheres are affected when ice melts into the ocean? Cryosphere & hydrosphere
12. Which scientist developed a new model of planetary motion? Kepler
Created by: jabb123
 

 



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