4 Written Questions

1. What is a fossil?
2. Rock layers are always _________ than the faults that cut across them.
3. Footprints and trails are examples of _________ fossils.
4. The era before the Mesozoic Era is the _________.

4 Multiple Choice Questions

1. The smaller particles of rock or the remains of living things that make up sedimentary rocks are called _________.
   1. Periods
   2. Older
   3. Sediments
   4. Sedimentary
2. At the beginning of the Paleozoic Era, a great number of different types of organisms evolved in an event called the _________.
   1. Metamorphic
   2. Cambrian explosion
   3. Relative
   4. Trace
3. Fossils usually occur in _________ rock.
   1. Older
   2. Sediments
   3. Hard
   4. Sedimentary
4. On the geologic time scale, the Mesozoic Era is divided into the Triassic, Jurassic, and Cretaceous _________.
   1. Sediments
   2. Periods
   3. Trace
   4. Hard

3 True/False Questions

1. Hard → Footprints and trails are examples of _________ fossils.

   True        False

2. Metamorphic → High pressure can change an igneous rock into a _________ rock.

   True        False

3. Relative → The law of superposition helps geologists determine the _________ age of a rock layer.

   True        False