Match the following items. 1. queen isabella of spain paid for him to sail west to reach the far east equator 2. largest ocean hemisphere 3. ocean around the north pole mir 4. russian space station vasco da gama 5. imaginary line around the middle of the earth pacific 6. first to sail from portugal, around africa, to india arctic 7. florida, a piece of land almost surrounded by water spice islands 8. an imaginary line through the earth around which the earth turns columbus 9. half of sphere peninsula 10. europeans 500 years ago wanted to find an all-water route to this place axis

1.) Columbus
2.) pacific
3.) arctic
4.) mir
5.) equator
6.) Vasco da Gama
7.) peninsula
8.) axis
9.) hemisphere
10.) spice islands

:)

Mantle convection is the process that drives plate tectonics. the theory of plate tectonics states that the crust is divided into plates that float on the semi molten mantle below. the circular motion of the magma as it slowly rises and falls or move though convection cells drags the plates along causing them to move. the heat source in the lamp would represent the earth's core. the core is the source of energy that drives convection in the mantle. the lava represents molten magma under the earth's surface. if the lava lamp had floating pieces they would move as the circular motion of the lava in the lamp as it rises and falls would move them along the surface. these floating pieces would represent pieces of the earth's crust.