Multiple Choice, 2 pts each:

1. Coal deposits in Iowa were formed from the remains of ________ during the Carboniferous period.
   1. corals (incorrect)
   2. sponges (incorrect)
   3. trilobites (incorrect)
   4. horsetails (AWESOME!)
   5. oaks (incorrect)
      Hint
2. During the Ice Age, glaciers advanced down from the Arctic in episodes called
   1. freezers (incorrect)
   2. tectonics (incorrect)
   3. downdrafts (incorrect)
   4. upwellings (incorrect)
   5. glaciations (YIPEE!)
      Hint
3. A granite boulder called a(n) ________ pushed down from Canada by glaciers may be found in northern Illinois.
   1. cornice (incorrect)
   2. erratic (AHA!)
   3. kettle (incorrect)
   4. kame (incorrect)
   5. loess (incorrect)
      Hint
4. Humans may have migrated from Asia into North America via the
   1. Panama Canal (incorrect)
   2. Silk Road (incorrect)
   3. Pangaea supercontinent (incorrect)
   4. Yucatan Peninsula (incorrect)
   5. Bering Strait land bridge (SPLENDID!)
      Hint
5. Synapsids such as Dimetrodon evolved into
   1. amphibians (incorrect)
   2. reptiles (incorrect)
   3. birds (incorrect)
   4. mammals (FINAL ANSWER!)
   5. fish (incorrect)
      Hint

Fill In (one or two words), 2 pts each:

6. A(n)                   forms when a stream flowing through a glacier leaves behind ridges of gravel and silt.
   Hint