Show:
Intro / Features / Location
Plate Tectonics
Earthquakes
Volcanoes
Minerals
100
What is a law?
- A theory that can be proven each time it is tested.
100
What are Plate Tectonics?
- The theory describing why and how the Earth's lithosphere moves across the Earth
100
What is the focus or "hypocenter"?
- The point within the Earth where the faulting begins
100
What is magma called once it erupts onto the Earth's surface?
- Lava
100
What is the color of a mineral in its powdered form called?
- Streak
200
What are map projections?
- Ways to take a 3D object (like the Earth) and make it 2D (a map)
200
What is seafloor spreading?
- Discovery that the ocean floor is spreading apart
200
What is the device that measures Earthquakes?
- The seismograph
200
What is viscosity?
- The ability to resist flow
200
What are silicate materials?
- Materials containing silicon and oxygen
300
What is a theory?
- A hypothesis that is supported by the results of experimentation and observation.
300
Who discovered Seafloor Spreading?
- Harry Hess
300
Where do most (80%) of all earthquakes occur?
- The Ring of Fire
300
What are the three types of volcanoes?
- Shield Volcano, Cinder Cone, and Composite Volcano
300
What is fluorescence?
- The ability of a mineral to glow or change color under UV light
400
What are the names of Earth's four layers?
- Crust, mantle, outer core, inner core
400
What is lithosphere?
- Rigid material made from oceanic crust, continental crust, and the upper mantle
400
What is the epicenter?
- The point directly above the focus (on the surface)
400
What is the funnel-shaped pit at the top of the volcanic vent?
- A crater
400
What is the reflectivity of a mineral (metallic or non-metallic) called?
- Luster
500
What is Hubble Law?
- Law stating that all galaxies in the universe are moving away from each other; proves that the universe is expanding
500
What causes Plate Motion?
- A series of convection currents in the asthenosphere
500
What is measured by the Modified Mercalli Scale?
Intensity (the kind of damage done and people's reactions to it)
500
What is a Caldera?
- A large basin-shaped depression
500
What is another word for "non-living"?
- Inorganic