Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
ryan's science test
ch 1-9
| Question | Answer |
|---|---|
| Two hypothesis scientists use to predict earthquakes | gap hypothesis probability hypothesis |
| The two scales used to measure earthquakes | Marcalli and Richter |
| What are the three types of seismic waves | S-waves, P-waves, and L-waves |
| Gap Hypothesis | A major earthquake is more likely to occur along the part of an active fault where no earthquakes have occurred for a certain period of time |
| P Waves | Pressure Waves--travel through solids, liquids, and gases, fastest waves, also called primary waves |
| S Waves | also called shear waves, second fastes seismic waves, when the rock swings back to original position |
| Richter Scale | measures strength of earthquakes |
| Mercalli Scale | the degree to which an earthquake is felt by people, uses Roman Numerals |
| Seismic Waves | Surface waves |
| Where do most earthquakes and volcanos happen? | On techtonic plate boundaries, West Coast |
| Transform boundary | plates sliding past each other horizontally(San Andreas Fault) |
| Convergent Boundary | Collision of two tectonic plates |
| Divergent Boundary | Plates moving away from each other (mid-ocean ranges) |
| Plate Tectonics | theory that explains how large pieces of the earths outermost layer move and change shape |
| How do tectonic plates move | convergent, divergent, transform |
| What are the layers of Earth | Inner Core, Outer Core, Mesosphere, Asthenosphere, Lithosphere, |
| Lithosphere | crust and upper mantle |
| Asthenosphere | plastic layer of mantle |
| Mesosphere | lower mantle and outer core |
| How old is the earth? | 4.6 Billion years |
| Relative Dating | discovering if an object or event is older or younger than another object or event |
| Absolute Dating | determing the age of an object in years |
| Isotopes | Atoms with the same number of protons, but different number of neutrons |
| absolute dating | scientists analyze isotopes, and see the radioactive decay, because decay happens at a steady rate |
| relative dating | determining if an object or event is older or younger than other objects or events |
| Name some alternative resources | nuclear, chemical, solar, windpower, hydroelectric, biomass, gasohol, geothermal |
| What are fossil fuels | coal, Petoleum, natural gas |
| What are two kinds of metamorphic rock | foliated and non-foliated |
| foliated | mineral grains arranged in planes or bands |
| non-foliated | mineral grains NOT arranged in planes or bands |
| rocks were used in the past for: | weapons, buildings |
| how is rock used now: | concrete and plaster |
| Two kinds of mines | surface mines, subsurface mines |
| 3 Types surface mining | quarries, open pit, surface coal mines |
| 3 Types sub-surface mines | drift, slope, shaft |
| 7 Ways to identify a mineral | Color, luster, streak, cleavage, fracture, hardness, density |
| 2 types of minerals | silicate and non-silicate |
| Equator | 0 degrees latitude |
| Prime Meridian | 0 degrees longitute |
| North Pole | 90 degrees north |
| South Pole | 90 degrees south |
| What is SI | International System of Units |
| What are the SI | length=meters, volume=cubic meters, mass=grams, temperature=celcius |
| How is density found: | mass divided by volume |
| Name 3 kinds of models | physical, mathematical, conceptual |
| Two hypothesis scientists use to predice earthquakes | gap hypothesis, probability |
Created by:
shriver
Popular Earth Science sets