October 28, 2011
This has been a great week with early release and wonderful parent conferences. Thanks so much to everybody for making it such a smooth week.
1, 2, and 3
Inside the Earth web quest due today (Grab your book) p 197
HW- Vocabulary due on Wednesday (Remember late vocab is only worth 50% of its value)
4 and 5
Plate Tectonics Project due by Monday
Vocabulary due Wed – same 50% rule as above
Remember to enjoy the rain and cold this weekend Ms S
Page 197
1. The Crust is the outside thinnest layer. It is made mainly of less dense compounds and less than 1% of the earth’s mass
The mantle is a thick inside layer beneath the crust It is made of dense compounds and is 67% of earth’s mass
2. Asthenosphere soft mantle material that flows slowly. Lithosphere rigid mantle plates
3. C
4. B
5. Crust- oxygen, silicon, aluminum
a. Mantle- more magnesium, less silicon and aluminum
b. Core- mostly iron and nickel
6. Lithosphere-outermost rigid layer
Asthenosphere- plastic layer, soft, lithosphere is on top
Mesosphere- strong lower part of mantle
Outer core-liquid, between mantle and inner core
Inner core- solid, dense
7. Pieces of the lithosphere that move on top of the asthenosphere can be composed of continental and oceanic crust
8. Seismic waves
9. Inner core and mesosphere
- Lithosphere is below the crust; the lithosphere is the lower
crust and upper mantle
- Solid rock is denser than water so they would go slower through a liquid
