Notes

Classification of Rocks

Igneous:

texture the degree of smoothness and compassion what its made of

Sedimentary:

clastic the different chunks of minerals and chemical the different charges within the rock

Metamorphic:

Foliated if it has layers Non-foliated no layers and texture and composition
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1 hour ago

Emily B. to Grade 8 Earth Science (1)
Rock Cycle

-Weathering the physical breakdown of an object (chemical or mechanical)
-Erosion the transfer of weathered sediment
-Deposition the act of putting something somewhere
-Compaction/Cementation when particles get pushed together over a long period of time with lots of pressure and the gluing of sediments
-Metamorphism the precess which rocks are altered in composition, texture, or internal structure by extreme heat, pressure, and chemical substances
-Melting the changing from a solid to a liquid state by the application of heat
-Cooling the loss of heat which hardens rock
-Uplift the bringing to the surface to restart the cycle

Sources:
http://science.howstuffworks.com/environmenta...
http://www.vocabulary.com/dictionary/depositi...
http://www.thefreedictionary.com/metamorphism
http://www.thefreedictionary.com/melting
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1 hour ago

Emily B. to Grade 8 Earth Science (1)
Types of Rock

-What are "rocks"?

-Igneous
-Felsic vs. Mafic:
Felsic is less common in in the heavier elements but is extremely com an in lighter elements. Very viscus.
Mafic is commonly found in the heavier elements and is normally very heavy. Not very viscus....
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1 hour ago

Emily B. to Grade 8 Earth Science (1)
Parts of the Eye

http://www.lensshopper.com/eye-anatomy.asp

cornea: outer area that helps to protect the eye and focus light on the lens
ciliary body: stabilizes the lens and changes the shape of the lens
optic nerve: back of the eye receives the signals from the retina and transmits it to the brain
retina: receives light and produces a signal...
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1 hour ago

Emily B. to Grade 8 Earth Science (1)
characteristics of light waves

-How are light and ripples in a pond similar? How are they different?
They have one source and then spread out. They are different because light moves so fast that we can't see it and the ripples on the pond move slow enough for us to see. Also the ripples have a much longer wavelength than the light.
-How does wavelength change as you move from left to right along the electromagnetic spectrum?
As you move along the spectrum the wavelength becomes shorter and it gain more energy.
-What region of the electromagnetic spectrum consists of light humans can see?
Humans can see the visible spectrum and that makes up all of the colors.
-What are the other parts of the electromagnetic spectrum?
The rest of the spectrum is radio waves, microwave, ultra-violet rays, infared, x-rays, and gamma rays.
-How do our eyes perceive color?
The colored light enters our eyes and bounces off parts of our eyes and goes through our lenses sending signals to our brain that takes those signals and comprehends them as the different colors.
-What type of light does the ozone layer protect us from?
ultra-violet rays
-Which type of light has the shortest wavelength and the most energy?
gamma rays
-How are energy and wavelength related?
The smaller the wavelength the more energy it has and the longer the wavelength the less energy it will have.
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1 hour ago

Emily B. to Grade 8 Earth Science (1)
light waves

a. What is the electromagnetic spectrum?
the ranges of light that we can and cannot see
b. What is the light that humans can see called?
visible light (the colors)
c. How does light travel?
light travels in waves that very in size from wave to wave
d. What are the high and low points of a wave called?
high: crest low: trough
e. What is wavelength?
the length between either trough to trough or crest to crest
f. How is wavelength important in defining the regions of the electromagnetic spectrum?
the waves get shorter and they also gain intencity so they become more powerful and dangerous
g. What is a common measurement of wavelength?
angstrom