Do Now
1. WHAT LAYER OF THE SOIL PROFILE
CONTAINS THE MOST HUMUS?
2. WHAT IS DECAYED PLANT AND ANIMAL
MATTER?
3. WHAT DETERMINES SOIL FORMATION?
2 WORDS
4. WHAT PROCESS ARE WIND, RUNNING
WATER, WAVES, AND GLACIERS AGENTS
OF?
5. WHAT IS THE SIZE OF PARTICLES?
1.
2.
3.
4.
5.
WHAT IS
UNIFORMITARIANISM?
WHAT IS CATASTROPHISM?
WHAT IS RELATIVE AGE?
WHAT IS SUPERPOSITION?
WHAT IS THE GEOLOGIC
COLUMN?
. 1 UNIFORMITARIANISM-SAME
GRADUAL GEOLOGIC PROCESSES
(WED) SHAPING THE EARTH
TODAY
HAVE
BEEN
AT
WORK
1
THROUGHOUT EARTH’S HISTORY
 2. Catastrophism-all
geologic changes occurs
suddenly with a
catastrophe
 Ex. Meteoroite or
earthquake
 3. Relative age-
determining if an object
or event is older or
younger than another
object or event
 4.
Superposition-younger rocks
lie above older rocks
“YOUNGER OVER OLDER”
 5. Geologic Column-sequence
of rock layers that contains all
of the fossils and rock layers
arranged from oldest to
youngest