This is a powerpoint presentation that is about one of the Senior High School Core Subject: Earth and Life Science. It is composed of the definition, characteristics and processes about rocks.

1. ROCKS
EARTH AND LIFE SCIENCE

2. WHAT IS A ROCK?
Any naturally occurring solid mass or consolidated
aggregate of minerals or mineraloid matter.
It is not a single, uniform crystal mineral thus it is
composed of different minerals

3. FEATURES OF A ROCK:
Texture (Shape and Arrangement, not the feeling of the
rock’s surface)
Structure
Grain Size (size of individual mineral crystals)
Chemical Composition
Color
Strength
Hardness

4. WHAT IS A BEDROCK?
A deposit of solid rock that is typically buried beneath
soil and other broken or unconsolidated material

5. HOW WERE ROCKS FORMED?
Rocks are formed when they successfully complete the
process of rock-forming called lithification
Lithification = sediments compacted under pressure
expel connate fluids (water and minerals) and became
solidified as rocks

6. PROCESS OF LITHIFICATION:
Compaction (a sediment loses its porosity due to effects
from loading)
Cementation (ions of groundwater chemically
precipitating to form new crystalline material)

7. HOMEWORK:
Research the definition and characteristics of the types
of rocks: (Igneous, Metamorphic and Sedimentary)
Give at least two examples of rocks under that category
or type