The Earth Science Discovery Cave Worksheet Page 2
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1
2The Earth Science Discovery Cave
By: Nancy Volk
Station 3
Coral Reef and Rock Formation
I
s living coral an animal or a plant? (Circle one.)
I
s it free swimming as a larva or an adult? (Circle one.)
C
oral reefs are biologically diverse marine ecosystems. 1/4 of all known fish species
live in reefs even though reefs cover only 1/4 of 1% of the marine area.
T
he oil spill in the Gulf of Mexico seems to have resulted in the death of a coral
reef. What effect will that have on Dory the Blue Tang Fish?
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T
he flow of water, slightly acidic from acid rain or from passing thought some thing acidic, is what digs out caves.
It essentially widens cracks in rocks. Howe’s Caverns were formed by water flowing through: (Circle one.)
Igneous Rock
Limestone
I
n the cave provided below, label the stalactite, stalagmite and column formations.
Station 4
Geomagnetism and Glaciers
T
he earth’s magnetic field is a result of the movement of the fluid outer core as the earth rotates. Magnetic polarity
changes or reverses periodically. True or False: A record of these changes is found in samples of the rock layers.
T
he picture to the left shows our current magnetic field.
In the next 3,000-5,000 years, when the field reverses,
how will the diagram change?
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I
f the polar ice melts, what will happen to the Statue of Liberty?
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W
hat will happen to the people who live in New York City?
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Earth Science - During Module Short
5-8 Grade
Page 2
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