Earth Science 1
Ecology
Earth Science 2
Earthquakes and Volcanoes
Chance
100
Studying the ocean floor, scientist found rocks showing magnetic
reversal
100
This takes place when more than one organism seeks the same resource at the same time
competition
100
The youngest rocks in the ocean floor are located where
mid-ocean ridges
100
The places between plates moving together are called
convergent boundaries
100
Most earthquakes and volcanic eruptions occur at
plate boundaries
200
Tectonic plates move around by
Convection Currents
200
Competition limits
population size
200
Has to be present for secondary succession to take place
Soil
200
Plates move apart at
divergent boundaries
200
Means "all land"
Pangaea
300
Seafloor spreading occurs because
hot, less-dense materials belwo Earth's crust is forced upward toward the surface.
300
The presence of predators usually
increases the number of species that can live in an ecosystem.
300
The seafloor spreading theory was proposed by
Harry Hess
300
Molten rock inside Earth is
magma
300
The results of plate movement can be seen at
rift valleys and plate boundaries
400
Cold,dry area where the sun barely rises during the winter
Tundra
400
New life that begins in an area that previously had no life is
primary succession
400
The cycle of heating, rising, colling, and sinking is called a
convection current
400
A broad, shallow volcano with lava sides is a
Shield Volcano
400
Consumers that eat both plants and animals are
omnivores
500
The presence of the same _______________________ on several continents supports the idea of
rocks and fossils
500
The 7 major biomes on Earth are
Tundra Taiga Temperate Rain Forest Temperate Decidious Forest Grasslands Desert Tropical Rain Forest
500
the alignment of iron-bearing minerals in rocks when they formed reflects the fact that Earth's _________has reversed itself several times in its past.
magnetic field
500
The slowest and largest seismic waves that coause most of the destruction during an earthquake
Surface wave
500
Subduction takes place at
convergent plate boundaries
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