EVSC 1010 Lecture Notes - Lecture 1: Coffee Cup, Carbon-12, Electromagnetic Radiation
24 Oct 2016
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Document Summary
System: a collection of interrelated/interacting components that function as a unit. Geosphere: the solid earth, consisting of the entire planet from the center of the core to the outer crust. Hydrosphere: all of earth"s water, which circulates among oceans, continents, and the atmosphere. Atmosphere: the mixture of gases surrounding the earth and retained by gravity. How the components are related: carbon cycle. Anything that has both mass and volume (takes up space: more rigorous definition matter is what atoms and molecules are made of. 4 states (or phases: solid, liquid, gas and plasma. 118 elements have been observed to date: 98 occur naturally on earth. Defn: the smallest particle that exhibits the unique chemical characteristics of an element. Composed of three smaller particles: proton: positive charge, significant mass, neutrons: neutral, significant mass, electrons: negative, no real mass. Protons and neutrons make up the nucleus of an atom: most of atom"s mass. Electrons orbit outside the nucleus at various distances.
