 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.

Branches of Earth Science GeologyOceanographyMeteorologyAstronomy Environmental 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

 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

 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.

 The Scientific Method is a guideline to scientific problem solving.

1) Observation is the process of using senses to gather info and can lead to asking questions. 2) Forming a hypothesis, a possible explanation or solution to a problem, can get a scientist started 3) The hypothesis is tested through an experiment or observations using both independent variables and dependent variables. 4) Draw a conclusion from the tests and the hypothesis may be accepted or altered which may lead to further testing

1. Closely Observe the physical world around you.2. Recognize a question or a problem.3. Make an educated guess—a hypothesis—to answer the question4. Predict what will happen5. Test your prediction 6. Draw Conclusions

 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

 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.

 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.

What are some examples of different theories? Big Bang Theory String Theory Theory of Evolution Theory of Tectonic Plates Electromagnetic Theory