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name

heart of antarctica

1. When a meteroid enters the earth’s atmosphere, it becomes a _______________ that glows. This is what you are watching when you see a "falling star." If this rock from space survives its fall to earth, the rock is called a ____________________________.

2. Scientists that study ___________________________ look for primitive life-forms on earth that could be similar to those found living on other planets.

3. A __________________ is a large body of ice that flows according to the shape of the land beneath it, while an ________________________ is so big and covers so many features of the land that it flows wherever it wants.

4. When an ice-sheet flows out over the ocean, it creates an _____________________. However, when separate pieces of the ice-sheet break off and float in the ocean, they are called _______________________.

5. The exposed peak of a mountain that is buried in snow and ice is called a ________________________.

6. In Antarctica, explorers have to be very careful not to fall into big cracks in the ice, called ___________________________.

7. A _____________________ forms when a rock is heated by the sun and slowly melts into the ice beneath it.

8. Strong ________________________ winds flow from the polar plateau north in all directions across Antarctica.

blue ice                 crevasses                      exobiology                     glacier

ice sheet                asteroid                         icebergs                        meteor

meteorite              nunatak                          pack ice                       sun-cup