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98 Cards in this Set

  • Front
  • Back
what is considered to be the cornerstone of science?
peer-review
horoscope percent with 13 signs?
7.7%
scientific method?
a continuous process by which people learn about the physical universe and share their knowledge with others
when Dimitri Mendeleev made the periodic table what was true?
there were a little more than 60 known chemical elements
chemists used the concept of atomic mass
chemists knew that each element had distinct chemical behaviors
there were one or two new discoveries of chemical elements each year
why do scientists reject astrology?
there is no evidence that stars can predict future
what do sicentists do when they are finished with research and want to communicate there results?
write a concise paper and subit it to a scientific journal and have it reviewed by peers
Ockham's razor is a?
philosophy advocating the simplest solutions
Ptolemaic theory of the universe has what?
an unmoving earth at the center
Johannes Kepler used what to understand eliptical orbits of planets?
mathematics
Copernicus?
he hypothesized that planetary orbits were circular
he thought that ptoloemys ideas about the shape or orbits were correct
he provided the first serious alternative to ptoloemys system
his model of the universe placed the sun at the center
what is the same for all electromagnetic waves?
speed
whats the difference between microwave radiation and infarred radiation?
infarred has shorter wavelengths
The magna carta does what?
basis of democracy
presents standard of measure
Federal agencies that sponsor research?
National science foundation
national institues of health
department of defense
department of energy
What did Galileo create? What language did he write in?
telescope
latin
What does the Hertzsprung-Russel diagram do?
used in astronomy to compare the energy output versus surface temperature of a star
Nebulae?
only galaxy place where planetary systems can exist
Where were the heaviest chemical elements on earth created?
supernovae
During what was the iron in your blood made?
the nucleur burning of a very large star
How far is the sun from the milky way?
30,000 light years
What does venus do in relationship with the sun?
venus reflects sunlight in the morning
what is the supernovae in the milky way galaxy?
kepler
Who first showed that the milky way is not the only galaxy in the universe?
hubble
Evidence for the big bang?
observation that the universe is expanding
independent evidence that microwave radiation is coming from all directions in space
abundnce of light elements
the sun produces energy by what?
burning hydrogen
which federal agency has spent the most money for R&D?
department of defense
copernicus hypothesized?
the sun is the center of the universe
the inner core at the center of the earth contains what?
the heaviest elements of the earths mass
when did the first cell evolve on earth?
3.5 billion years ago
What does the impact collision theory of the Moons formation suggest?
that the earth was struck by a huge object causing a large amount of mantle material to be blown out into the orbit
volcanic outgassing produces what elements?
carbon dioxide
water vapor
hydorgen gas
what did we watch a video of in class?
comet wild 2
how far can light travel in one second?
300,000 km
what did newton come up with?
three laws of motion
age of the universe?
13.7 billion years
the nebular hypothesis states?
the solar system began as a cloud of dust and gas
which scientist discovered pluto?
clyde tombaugh
optical telescopes use?
a curved mirror
the diameter of the milky way galaxy is?
120,000 light years
why does the earth have layers?
differentiation of elements and materials
sodium chloride atoms form a crystal lattice that is held together by what?
ionic bond
an example of something created by metallic bond is?
gold
why is glass not a mineral?
because it lacks long range order in its atomic structure
also will not yield a XRD pattern
27% of the earths outer crust is composed of what?
silicon
Bragg's Law?
(h) / 2 sin (o)
the northwestern coast of the united states is in what?
a subduction zone (mt st helens)
evidence for plate tectonics?
tepographic profiles of the ocean floors
maps on rock magnetism
data classifying rocks by age
sea floor spreading
how were the magnetic patterns from the seafloor data created?
by magnetite in lava flows
first mapped by a ship named Pioneer off the coast of washington
what causes divergent plate boundries?
sea floor spreading
what is an example of transforming plates?
San Andreas fault
ocean rocks are?
basalt
continental rocks are?
granite
first solids to form on earth were?
igneous rocks
how do two isotopes of the same element differ?
their nuclei have different number of neutrons
dr lower used what to represent x-ray diffraction in class?
red laser pointer
what is a chemical bond?
the redistribution of electrons between atoms, leading to a more stable configuartion
valence electrons?
electrons at the outer level of the atom
example of hydrogen bond?
DNA
where is the longest mountain range on earth?
mid atlantic ocean ridge
forces that move contients and tectonic plates?
convection cells
mantle convection
radioactive decay
heat energy left from the great bombardment
why have mountains not eroded?
mountains are reformed by tectonic uplift that is greater than or equal to the erosional forces
what is the oldest part of the Hawaiin Island Chain?
northwest part
rhyolite?
a light colored fine grained igneous rock
what dod dr lower use to demonstrate radioactive decay in class?
pennies
carbohydrates?
sugars composed of monosaccharides like glucose
lipids?
fatty acids, phospholipids, membranes, hydrophilic and hydrophobic
proteins?
chains of amino acids
nucleic acids?
DNA and RNA
why is venus so hot?
green house effect
what is carbon sequestration and what are the four thigns it does?
store carbon in reservoirs
1) promote growth of plants (trees)
2) pump CO2 into deep subsurface aquifer
3) fertilize ocean to stimulate growth of phytoplankton
4) promote growth of rocks that contain carbon limestone
What are the 5 properties of a mineral?
- Natural occuring
- Solid
- Inorganic formed
- Specific chemical composition
- Crystal Structure
Explosive nature of a volcano is determined by its ___________________________ of magma.
Silica content (SiO2)
Whats a mineral with the lowest silica content?
Basalt (45%-50%)
What's a mineral with the highest silica content?
Rhyolite
Why have most mountains not erode to a flat plain?
Mountains are reformed by tectonic uplift that is greater or equal to the erosional forces.
What are the important properties of a shield volcano?
Mafic, Basalt/Gabbro, Oceanic, Hawaiian island chain, Less viscous due to lower silica content.
Important properties of Composite Volcano
Felsic, Rhyolite/Granite
Mt. St. Helens
More viscous due to high silica content.
All cells possess a ______________________ which is strudded with protein receptors.
lipid bilayer membrane
Subduction zone regions are common in locations of:
Active volcanoes,
Destruction of oceanic plate material
Melting of felsic (light) material
Stratovolcanoes and composite volcanoes
The natural temperature increase associated with atmospheric trapping of heat is called what?
The Greenhouse effect
For the greenhouse effect what type of radiation is emitted from the earth's surface and what radiation is reflect by the Earth and the atmosphere?
Infrared radiation emitted from Earth's surface since CO2 absorbs infrared radiation. Solar radiation passes and is reflected by the Earth and the atmosphere.
The reason of the increase in our CO2 levels is due to what factors?
- Glaciers since they trap atmospheric gas
- Carbon sinking traps excess CO2
A Higher d-spacing means the peak will melt _________ which means it has a ________ temperature and a Lower d-spacing means the peak will melt __________ which means it has a __________ temperature.
Higher d-spacing means peak will melt last since it's temperature is the highest. A lower d-spacing means the peak will melt first meaning it has a low temperature.
What did Milutin Milankovitch (serbian engineer and mathematician theorize?
- Theory: Relatioinship between Earth and Sun is affected by a a number of variations in Earth's rotation and its orbit.

Eccentricity, Axial Tilt, and Precession.
Trees and other green plants breath in CO2 and convert into what during photosynthesis?
Convert to solid, carbon, carbohydrates, protein, DNA, etc.
A High eccentricity means what?
Colder, Ice Age, Earth is farther from the Sun.
A Low eccentricity means:
Hot, High sun, sea level rises, thin sheets of solid H20 on land
What is our atmosphere mainly composed of?
Nitrogen (78%) and oxygen (21%)

and Argon 0.9% and CO2 0.03%.

Remaining gases (Helium, methane, ozone, etc.)
Mt. St. Helens has properties of what type of rock?
Continental Rock:
Felsic
Granite
Rhyolite
Continental
Strato
Hawaii has properties of what type of rock?
Oceanic Rock.
Properties - Mafic, Gabbro, Basalt,
What's the role of proteins?
- Generate ATP or synthesize material
- Transport thru and structure of membranes
An amino acid contains what two groups?
Carboxylic group (COOH) - comb. of carbon, oxygen, and hydrogen
Amino group (NH2) - nitrogen bonded to two hydrogen atoms
How many different amino acids are produced in cells?
20 different amino acids
What is a peptide bond?
Hydrogen atom connects amino acids - shows how proteins are formed through linkage
What are enzyme's purpose?
Enzyme's purpose is to bring together two other molecules to form bond - determine the properties of those systems.
What's the role of lipids?
- Form cell membranes that separate living material from its environment, as well as separate one part of a cell from other parts
- Store energy
When something cross-cuts the layer of faults such as drilling, what effect does it have on minerals?
Minerals on the top layers can no longer be found thus only the current layer to the oldest layer of minerals can be found.
Subductions zones are commonly in locations of what?
Active Volcanoes