15 terms

Science Vocab. 1

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Theory
an explanation based on many observations during repeated experiments that is valid only if it is consistent with observations, makes predictions that can be tested, and is the simplest explanation or observation
Control
standard for comparison in an experiment
Independent variable
Factor that is manipulated by the experimenter in a experiment
Dependent variable
factor in an experiment that can change if the interdependent variable changes
Oceanography
study of earths oceans including the creatures that inhabit its waters, its physical and chemical properties and the effects of human activity
Hypothesis
suggested explanation for an observation often stated in the form of a question that can be answered by the results of an experiment
Atmosphere
Blanket of gases surrounding Earth that contains 78% nitrogen, 21% oxygen, and 1% other gases such as argon, carbon dioxide, and water vapor
Le System International d'unites
Modern version of metric system based on decimal system using # 10 as base units
Lithosphere
Earths rigid outer shell, including the crust and the solid, upper most part of the mantle
Asthenosphere
Partially molten, plastic like, flowing layer located bellow the solid part of Earths mantle
Geology
Study of materials that make- up Earth and the process that form and change these materials
Meteology
Branch of Earths science that studies the air that surrounds our planet
Astronomy
Study of objects beyond Earths atmosphere
Hydrosphere
All the water in Earths oceans, lakes, seas, rivers, and glaciers plus all water in atmosphere
Biosphere
All of Earths organisms and the environment in which they live