8/29 Scientific study of Earth began with careful observations. Scientists in China begankeeping records of earthquakes as early as 780BCE. The ancient Greeks compiled a catalog of rock and minerals around 200 BCE. Who first began to study Earth?
8/30Eventually the body of knowledge about Earth became known as Earth Science. Earth Science is the study of Earth and of theuniverse around it. Earth science assumes thatthe causes of natural events or phenomena can be discovered through careful observation and experimentation. What is Earth Science?
8/31The ability to make observations improves when technology such as new processes or equipment is developed. Most Earth scientists specialize in one of 4 major areas of study: the solid Earth, the oceans, the atmosphere, and the universe beyond Earth. What are the 4 areas of Earth Science?
9/1The study of the origin, history, processes, and structure of the solid Earth is called geology. Geology includes many specialized areas of study. Some geologists study the earth’s crust, others study the forces within Earth, while others study fossils. What is geology?
9/2Oceans cover nearly ¾ of Earth’s surface. Thestudy of Earth’s oceans is called oceanography.Some oceanographers work on research ships, others study waves, tides and ocean currents, while others explore the ocean floor. What is oceanography?
9/7 The study of Earth’s atmosphere is calledmeteorology. Using satellites, radar, and other technologies, meteorologists study theatmospheric conditions that produce weather. The weather information is used to prepare detailed weather maps. What is meteorology?
9/8The study of the universe beyond Earth is called astronomy. Astronomy is one of the oldest branches of earth science. Modern astronomers use earth based and space based telescopes as well as other instruments to study the sun, moon, planets and universe. What is astronomy?
9/9 The goal of science is to explain natural phenomena. Scientists ask questions about natural events and then work to answer those questions through experiments andexamination. Scientists build on the research of scientists before them. What is the goal of science?
9/12Factors that can be changed in an experiment are variables. Independent variables are factors that can be changed by the person performing the experiment. Dependent variables are variables that change as a result of a change in independent variables.How to remember independent and dependent by Mrs. Wilson.
9/12Scientists use models to simulate conditions in the natural world. A model is a description,representation, or imitation of an object, system, process, or concept. Scientists use several types of models. What is a model?
When an idea has undergone much testing andreaches general acceptance, that idea may helpform a theory. A theory is an explanation that is consistent with all existing tests and observations. Theories are often based on scientific laws. What is a theory?
Science is also used to develop new technology, including new tools, machines, materials, and processes. Sometimes technologies are designed to address a specific human need. In other cases, technology is an indirect result of science that was directed at another goal.
9/13Science is a part of society, and advances in science can have important and long lastingeffects on both science and society. Examples of these far reaching advances include the theory of evolution. What or who do scientific advances effect?
Scientist in one research group tend to viewscientific ideas similarly. Which may make them biased. To reduce bias, scientists submit their ideas to other scientists for peer review. Peer review is the process in which several experts on a given topic review another experts work before it gets published. What is peer review?