4 Written Questions

1. The division of Earth's history into units makes up the ___________.
2. We live in the layer of the earth called _________.
3. Oceanic crust is made of _______.
4. Species that could not adapt to changes eventually became _________.

4 Multiple Choice Questions

1. After major changes in Earth's environments, species either died out or _________.
   1. Eons
   2. Evolution
   3. Evolved
   4. Extinct
2. Organisms with traits that are suited to an environment survive by the process of ________ ________.
   1. Basalt
   2. Natural selection
   3. Species
   4. Evolution
3. A gradual change in life-forms over time is ___________.
   1. Evolved
   2. Eons
   3. Evolution
   4. Extinct
4. Continental crust is mainly _______.
   1. Granite
   2. Crust
   3. Basalt
   4. Extinct

3 True/False Questions

1. Less → Major divisions of Earth's history are _______.

   True        False

2. Species → Granite is ______ dense than basalt.

   True        False

3. Eons → Granite is ______ dense than basalt.

   True        False