Transcript Bell Ringer Answers 1-31-11

Bell Ringer Answers 1-31-11
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Pieces of minerals and rocks are cemented
together; shells and skeletons of ocean
animals are cemented together; dissolved
minerals are left behind as water evaporates.
It is made of the remains of ancient plants.
For gemstones, in pencils, as a material for
builders and artists.
If it is made of mainly one type of mineral or if
it has not been subjected to high pressure.
Bell Ringer Answers 2-1-11
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Increasing temperatures or pressure or both
Heat and pressure can break bonds in
minerals, and the atoms can then join in new
ways to make new minerals
Because most rocks contain several types of
minerals.
Nonfoliated; because it would have been
changed by heat of lava flows and not by high
pressure.
Bell Ringer Answers 2-2-11
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Earthquakes produce seismic waves.
Basalt
A soft layer of the mantle that lies just
beneath the lithosphere.
The outer core has the characteristics of
a liquid, whereas the inner core is solid.
Bell Ringer Answers 2-3-11
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It is not possible to drill deeper than Earth’s crust,
so indirect methods must be used to learn about
Earth’s inner structures.
Seismic waves released during earthquakes travel
at different speeds in different layers. By analyzing
where and when seismic waves are received,
scientists can infer what Earth’s interior is like.
Crust, mantle, core.
The lithosphere is the uppermost part of the
mantle; it is rigid. The asthenosphere is the layer
directly below the lithosphere; it is hotter and under
more pressure, and therefore is more plastic.
Bell Ringer Answers 2-4-11
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Earth’s outer core is liquid. The other layers
are solid, but the rock that makes up the
mantle can flow slowly.
Conduction is heat transfer within a material or
between materials that are in direct contact.
Gravity pulls denser (cooler) material toward
earth’s center more strongly than it pulls less
dense (hotter) material.
Radiation, conduction, covection.