1st Semester Science Exam
for mrs. campbells exam
Terms
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copy deck
- divergent
- type of boundary of the Great Rift Valley in Africa
- reverse
- faults caused by compression
- focus
- point beneath earth's surface where rock breaks under stress and triggers an earthquake
- Glomar Challenger
- ship that collected information about the rocks on the seafloor through samples
- primary waves
- waves that reach a seismograph first
- asthenosphere
- plates on the lithosphere float on the...
- three
- number of seismographs needed to locate an earthquakes epicenter
- shearing
- stress that pushes a mass of rock in two opposite directions
- fossils and rocks
- geologic time is broken into units based on
- Pangea
- a supercontinent; former combination of all the continents into one
- humans, mammals, reptiles, birds
- forms of life in the Cenozoic Era
- San Andres Fault
- example of a transform boundary in California
- blue-green algae, bacteria, cyanobacteria
- Precambrian life forms
- mass extinction
- what marked the end of the Paleozoic Era
- focus
- point in the earth where the the enery release of an earthquake occurs
- rift valley
- forms where two plates pull apart or diverge
- suduction zone
- forms where two oceanic plates collide
- Himalayas
- mountains formed by the Indo-Australian Plate colliding with the Eurasian plate
- crust, mantle, outer core, inner core
- the order of earths layers from outermost to innermost is:
- base-isolated building
- building designed to reduce the amount of energy that reaches the building during an earthquake
- seismograph
- scientific device that records seismic waves and magnitude of earthquakes
- lithosphere
- the crust and upper mantle
- hot rock
- earth's mantle is a layer of
- asthenosphere
- convection currents flow in the
- eon
- the longest subdivision in geologic time
- conclude
- last step in conducting an experiment
- seismic waves
- natural occurances that geologists observe Earth's interior through
- sound waves
- what scientists used to map the ocean floor
- graduated cylinder
- tool liquid volume is measured in
- surface waves
- most destructive waves
- environment
- trilobite adaptations are contributed to a changing....
- convection currents
- forces inside the earth that drive plate motion
- secondary waves
- type of seismic waves that move the 2nd quickest
- kilogram
- the basic SI unit of mass
- theory of plate tectonics
- geological theory that states that pieces of Earth's lithosphere are in constant, slow motion
- subduction
- the process by which the ocean floor sinks bneath a deep-ocean trench and back in the mantle
- strike-slip
- rocks on sides of fault move past each other
- fossil
- any trace of an ancient organism that has been preserved
- compression
- force that squeezes rocks together
- 200 million years
- time when it is believed that Pangea broke apart
- hypothesis
- a prediction about a problem that can be tested
- plate boundaries
- where the results of plate movement can be seen
- shearing
- force that causes plates to move sideways past each other
- drop cover and hold
- best way to protect yourself in an earthquake
- unconformities
- gaps in rock layers
- variable
- factor being measured in an experiment
- lithosphere
- made up of the upper mantle and crust
- estimate
- whenever you make a careful guess
- tsunami
- giant waves cause by an earthquake under the ocean
- outer core
- hot molten metal that the inner core spins inside
- state the problem
- the first step in designing an experiment
- glossopteris
- fossil plant that helps support the theory of continental drift
- mantle
- the astenosphere is a part of this layer
- primary waves
- type of seismic waves that move the quickest
- weight
- the amount of force gravity exerts on an object
- strike-slip
- faults caused by shearing
- mountain ranges
- continental lithosphere at a converging boundary forms
- reverse
- fault where the hanging wall moves upward
- mid-ocean ridge
- caused by seafloor spreading; where molten material rises to the surface of the ocean floor and erupts
- 3 beam balance
- device used to measure mass
- magnetic fields
- the alignment of iron minerals in rock show that earth's what has reversed over time
- relative dating
- determining the order of events and the relative age of rocks by examining the position of rocks in a sequence
- surface waves
- seismis waves that move the slowest
- inner core
- layer with the most pressure
- normal
- fault where the hanging wall moves downward
- solid metal
- earth's inner core is....
- oceanic
- type of crust that is denser
- secondary waves
- what waves stop when they hit the liquid outer core
- primary waves
- type of earthquake waves that can travel through liquids and solids
- convergent
- boundary where rocks come together
- infer
- to draw a conclusion based on something you observe
- theory of continental drift
- hypothesis that the plates have drifted to their current postitions
- transform bounday
- where two plates slip past each other
- normal
- faults caused by tension
- divergent boundary
- where two plates move away from each other
- tension
- force that pulls rocks apart