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Chapter 1.1 Vocab

TermDefinition
Astronomy Study of objects beyond Earth's atmosphere
Meteorology The study of the atmosphere, which is the air surrounding Earth
Geology Study of materials that make up Earth and the processes that form and change their materials, and the history of the planet and its life-forms
Oceanography Study of Earths oceans including the creatures that inhabit its waters, its physical and chemical properties, and the effects of human activities
Environmental Science Study of the interactions of humans with enviroment
Geosphere The part of Earth from its surface to its center
Atmosphere Blanket of gases surrounding Earth that contains about 78 percent nitrogen, 21 percent oxygen, and 1 percent other gases such as argon, carbon dioxide, and water vapor
Hydrosphere All the water in Earth's oceans, lakes, seas, rivers, and glaciers plus all the water in the atmosphere
Biosphere All of Earth's organisms and the environments in which they live
Scientific Methods A series of problem-solving procedures that help scientists conduct experiments.
Hypothesis A testable explanation of a situation
Independent Variable Factor that is manipulated by the experimenter in an experiment
Dependent Variable Factor in an experiment that can change if the independent variable is changed
Control Standard for comparison in an experiment
Le Systeme International d'Unites Replacement for the metric system; based on a decimal system using the number 10 as the base unit; includes the meter, second, and kilogram
Scientific Notation A method used by scientists to express a number as a value between 1 and 10 multiplied by a power of 10
Scientific Model An idea, a system, or a mathematical expression that represents the idea being explained.
Scientific Theory An explanation based on may observations during repeated experiments
Scientific Law A principle that describes the behavior of a natural phenomenon.
Created by: Dempsey_LYnn