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63 Cards in this Set
- Front
- Back
Scientific Method
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a systematic approach to problem solving
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Hypothesis
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a testable prediction
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Formatting a Hypothesis
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If, then
If independent variable is related to the depedent variable, then a prediction can be made |
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Variables
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Independent-doesn't depend on anything else
Dependent-depends on other things Control-does not contain the variable |
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Table
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variable names
units titles |
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Graphs
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variables names
units title key lots of space used |
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Drawings
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variable names
units title capital labels detail |
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Conclusion
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discuss data, purpose, hypothesis, errors, and room for improvement
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Theory
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well tested explanation of a large variety of observations
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Law
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scientific thoery that is well-tested and widely accepted as true
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Rotation
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spinning around an axis causing day and night
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Revolution
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movement of an object around another object causing Earth's year
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Kinds of Satellites
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Natural and Artificial
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Low-orbits
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make several orbits each day
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Geosynchronous
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orbit at the same speed as the earth so they always stay in the same spot
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Moon
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doesn't have it's own light
orbits every 28 days--same as earth |
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Phases of the Moon
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Waxing-getting larger
Waning-getting smaller |
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Why do we only see one side of the moon
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revolves and rotates at the same speed of the Earth
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Lunar Eclipse
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during a full moon the moon is in earth's shadow
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Solar Eclipse
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during a new moon, the moon is between the sun and the earth
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Umbra
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darkest part of the moons shadow
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Penumbra
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lightest part of the moons shadow
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Maria
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seas of basaltic lave
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Highlands
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craters that we can see because there is no erosion
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Moon Facts
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1/6 gravity
no atmosphere no erosion no oil no plants frozen water at poles |
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Origin of the Moon
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a large object crashes into earth, breaking a piece of it off which started to orbit the Earth
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Parts of the Sun
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Interior
Photosphere Chromosphere Corona |
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Photopshere
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light part of the sun
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Chromosphere
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red rim of hot gases
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Corona
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outer rim of the sun
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Sunspots
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dark, cooler, magnetic regions on the surface of the sun
cyclic-11yrs |
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Solar Flares
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brief outbursts that cause solar winds to intensify and we see auroras
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Prominence
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cloud-like structures made of gases on the sun
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Interior
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nuclear fusion happens when hydrogen becomes helium producing light and heat energy
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Mineral
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a solid, naturally occuring in organic substance composed of an element or compound with a fixed chemical composition
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Abundant elements and the group they make up
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Si and O; silicates
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Mineral Uses
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Halite-salt
Gypsum-plaster Talc-talcum powder Pyrite-batteries |
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Rocks
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aggregates of one or more minerals
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Rock Cycle
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process by which each rock type is formed
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Igneous
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-cool slowly or quickly to develop a fine or course texture
-classified according to texture and composition |
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Types of Igneous we've seen
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granite, basalt, obsidian, pumice
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Bowen's reaction Series
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indicates minerals which crystallize first, second, third, etc. according to temperature
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Sedimentary
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originate from weathered material, detrial, or clastic, or chemical
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Limestone
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Sedimentary
Fizzes because it's mainly made of calcite |
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How sedimentary is formed and some features
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by deposition, then compaction, then cementation until lithified; ripples, animals, mudcracks, cross-bedding
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Metamorphic
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-heat, pressure, and fluids
-had to have a parent rock -foliated (layers) or non-foliated |
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Weathering
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physical breakdown and chemical alteration of rocks
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Kinds of Weathering
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Mechanical-breaks into smaller pieces
Chemical-acid rain, oxygen |
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Erosion
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physical removal of material by mobile agents
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Soil
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combination of mineral and organic matter, water, and air
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Humus
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organic matter in soil from the decomposition of plants and animals. retains water well
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Composition of soil
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Half humus and mineral matter
half pore space for air and water |
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Loam
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type of soil texture where neither sand, silt, or clay is dominant. Best for plants
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Why is soil structure and texture important?
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ability to be cultivated and suseptibility to erosion
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Factors that affect soil formation
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parent material
time animals plants climate slope |
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Soil Profiles
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the vertical sections through soil
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Mass Wasting
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the work of gravity on the earth
landslides, slump, and creep |
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How do you identify a mineral?
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Quantitative and Qulaitative evidence
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Crystal form
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external expression of a mineral's internal orderly arrangement of atoms
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Streak
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color of the mineral in it's powdered form
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Mohs Hardness Scale
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classify minerals based on their hardness 1-10
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Specific Gravity
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compares the weight of a mineral to the weight of an equal volume of water
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Density
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how much mass per volume
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