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Chapter 1 Notes Earth Science

Chapter 1 Notes Earth Science. 1.1 What is Earth Science?. Earth Science is the study of the earth and the universe around it. It assumes that events and natural phenomena can be discovered through observations and experimentation. It depends on the technology avilable .

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Chapter 1 Notes Earth Science

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  1. Chapter 1 Notes Earth Science

  2. 1.1 What is Earth Science? • Earth Science is the study of the earth and the universe around it. • It assumes that events and natural phenomena can be discovered through observations and experimentation. • It depends on the technology avilable.

  3. 1.1 What is Earth Science?

  4. 1.1 What is Earth Science? • Geology is the study of the origin, history, processes, and structure of the solid earth. • Oceanography is the study of the oceans. • Examples- Waves, tides, ocean current • Meteorology is the study of the atmosphere, weather, and climate

  5. 1.1 What is Earth Science? • Astronomy is the study of the universe beyond Earth. • The sun, moon, planets, and the universe are studied with various technologies (oldest of all the studies) • Environmental Science is the study of how humans interact with their environment and the use of natural resources • Pollution is included in this branch

  6. 1.1 What is Earth Science? • Earth science is important because it gives us knowledge about the state of Earth and universe in the past, present, and the future. • Earth makes life possible and Earth Science ensures that people have access to the resources while also finding new ways to use them more wisely.

  7. 1.2 Science as a Process • The Scientific Method is a guideline to scientific problem solving.

  8. 1.2 Science as a Process • Observation is the process of using senses to gather info and can lead to asking questions. • Forming a hypothesis, a possible explanation or solution to a problem, can get a scientist started • The hypothesis is tested through an experiment or observations using both independent variables and dependent variables. • Draw a conclusion from the tests and the hypothesis may be accepted or altered which may lead to further testing

  9. 1.2 Science as a Process

  10. 1.2 Science as a Process • Standard Units Scientist use: Metric units (English), NOT Standard units (Imperial System) (US) • Metric Units include Kg, meters, liters etc • Standard Units include lbs, miles, gallons • Only three countries don’t use the metric system. • Liberia (Africa), Myanmar(Asia), and America

  11. 1.2 Science as a Process • Science Tools • Accuracy-How close the data point is the the actual true value. • Precision- How close the data points are to each other. • Example- Target Board • Error- The variation in a set of measurements and can be represented by a confidence interval.

  12. 1.2 Science as a Process • Science Tools • Peer Review- Reduces Bias-when other experts from other fields test the validity of the experiment • Theory-if the conclusion holds and is accepted as true, that idea may form a theory.

  13. 1.2 Science as a Process What are some examples of different theories? Big Bang Theory String Theory Theory of Evolution Theory of Tectonic Plates Electromagnetic Theory

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