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Earth Science. What is the study of earth exactly?. What doesn’t it cover?. Earth science is going to cover a lot of things. The earth has lots of different systems that we will go through. The four main branches of earth science are Astronomy, Meteorology, Geology, and Oceanography
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Earth Science What is the study of earth exactly?
What doesn’t it cover? • Earth science is going to cover a lot of things. • The earth has lots of different systems that we will go through. • The four main branches of earth science are Astronomy, Meteorology, Geology, and Oceanography • Pretty much all Earth science can be put into one of these four branches
Earth’s Systems • To go along with the four main systems of the Earth Science, There are four systems that go as follows: the lithosphere, the hydrosphere, the atmosphere, and the biosphere. • Lithosphere: crust and mantle • Hydrosphere: water system • Atmosphere: gases surrounding the earth • Biosphere: All living organisms
Astronomy • Stars, Aliens, Planets, Out of this world • The study of astronomy might not deal with aliens (we have not come up with evidential proof yet) but it does include everything that is not on our current planet. • Gotta use special instruments to study: space ships, telescopes, etc.
Meteorology • The study of knowing with its going to rain (among other weather elements) • Meteorologists study the forces and processes that cause the atmosphere to change to produce weather. • They also try to “predict” what will happen next.
Geology • Rocks! More and more rocks. • Geology is the study of the materials that make up Earth and the processes that form and change these materials. • Any rock collectors out there?
Oceanography • You guessed it. This is the study of the ocean. • Why not though, it takes up 3/4ths of Earth’s surface • This is the study of the ocean in all that that encompasses (animal/plant life, chemical issues, currents, etc.)
Measurements! Why are these important?
SI • SI stands for Systeme International d’Unites • Internationally, this is the system that we will use measure anything in science. • There are several things that get measured • Length, Mass, Volume/Area, Density, Time, Temperature
Length • Measured in Meters (m) • How long something is or the distance between two objects
Mass • Measured in grams (g) • The amount of matter in an object • Not the same as weight but similar
Area/Volume • Area is measured in m2 • It is the amount of space on the surface something takes up. • Volume is measured in the milliliter (mL) or cm3 • About of space something takes in 3D
Density • Amount of matter that occupies a given space • Doesn’t have a special unit to itself. • Labeled g/mL or g/cm3 • Aka mass/volume • No tool to measure
Time • Internationally time is measured by seconds (s) • Usually is going to be measured by a watch or a timer
Temperature • In science we do no use the Fahrenheit scale. We use Celcius (C°) • We could also measure in Kelvin but that’s less important at the moment • Use a thermometer
Goes by 10’s • There are bigger and smaller units of each base units • Length-meter(m) • Mass- gram (g) • Volume- Liter (L) • Time- second (s) • Temperature- Celcius (C°) • Divisions by ten- • Mega- base x1,000,000 • Kilo-base x 1,000 • Deci- base/10 • Centi- base/100 • Milli- base/1000 • Micro-base/1000000 • Pico-base/1000000000
Practice • 1 m = ? mm • 1ms= ? s • 1 ml = ? cL = ? L • 1 L = ? mm • HINT! • If you are getting bigger divide. • If you are getting smaller multiply