Monday, March 9, 2015

7th Science - 3/9/15


https://docs.google.com/document/d/1H1YxzIYttiFQE4SmhH3ZXIMb1HvDcfrGrQEm_8SByEw/pub

Homework:

3/11 - Copy vocabulary words in NB: 1- 11

3/13 - 12-23.  OR you can copy all of them at the same time.  Make sure it is completed by Friday (3/13)

1.  crust - the thin and solid outer most layer of the earth above the mantle

2. mantle - The layer of rock between the earths crust and core

3.  inner core - it is solid, dense and extends from bottom of outer core to center of the earth



4. mesosphere - Its the strong lower part of the mantle, between asthenosphere and the outer core and extends from asthenosphere to earths core

5. fault - A break in a body of a rock along which one block slides relative to another

6.  divergent - Plates move away from eachother

7. convergent - plates move toward eachother

8. continental drift - hypothesis that states that continents once formed a single landmass broke up and driffed to the preasant locations

9. sea floor spreading - the proces by which new oceanic lithosphere forms as magma rises towards the surface and solidifies

10. transform slip - the boundry between tectonics plates that are sliding past eachother horizontally

11. pangaea - present continents were joined in a single huge continent "all the earth"

12. convergent - when plates move towards each other

13. seismograph - an instrument that records vibrations in the ground and determines the location and strength of earthquakes

14. magnetic reversal - the earth magnetic plates change places

15. mid ocean ridge - an underwater mountain that takes place where sea floor spreading takes place

16. seismic waves - a wave of energy that travels through the earth and away from earthquakes in all directions

17. plate tectonics - it explains that the earth is divided into pieces in the lithosphere that move around on top of the asthenosphere

18. ocean crust - the thinnest part of the plate


20.  compound - a substance composed of two or more elements

21. continental crust - the thickest part of a tectonic plate

22. asthenosphere - the soft layer of the mantle on which the tectonic plates move

23. lithosphere - the solid outer layer of the earth that consists of the crust and the rigid upper part of the mantle