Download Rocks and the Rock Cycle

Rocks and the Rock Cycle
Poster Project
Objectives
Students will:
• Describe the three types of rocks
• Illustrate knowledge of the rock cycle
• Explain how rock changes into new forms.
Read through this power point
and use the information to create
a detailed poster of the rock cycle
Three Types of Rocks
• Rocks are
classified by how
they form
– Igneous
– Sedimentary
– Metamorphic
– Rocks can change
from one type to
another over time
Schist
Rock Classification
• Rocks are
classified by:
–
–
–
–
How they form
Texture
Grain size
Mineral
composition
Conglomerate Sedimentary Rock
Igneous Rocks
• Igneous rock:
forms when molten
rock (magma) cools
and hardens
• Classified by:
– Where they form
– Crystal (grain) size
Basalt
Intrusive Igneous Rock
• Intrusive igneous:
cooling takes place
slowly beneath
Earth’s surface
granite
Extrusive Igneous Rock
• Extrusive igneous:
cooling takes place
rapidly on Earth’s
surface
Pumice
Sedimentary Rock
• Sedimentary rock:
forms from the
compaction and/or
cementation of
sediments
• This process is
called lithification
• Sediments are:
– Rock pieces
– Mineral grains
– Shell fragments
Limestone
How do sediments form?
weathering
• Sediments form
through the
processes of
weathering and
erosion of rocks
exposed at Earth’s
surface
erosion
Sedimentary Rock con’t….
• Sedimentary rock
can also form from
the chemical
depositing of
materials that were
once dissolved in
water
• When water
evaporates, minerals
are left behind and
form rock
gypsum
Metamorphic Rock
• Metamorphic rock:
forms when any
rock type is
changed into a
different kind of
rock
• Changes due to
great heat and/or
pressure
Gneiss
How does rock change?
• Rocks are heated,
squeezed, folded,
or chemically
changed by contact
with hot fluids
marble
The Rock Cycle
The Earth Recycles Rock
• The rock cycle is an
ongoing series of
processes inside Earth
and on the surface
• Slowly changes rocks
from one kind to
another
• Any type of rock can
change into another
type
Rocks/Rock Cycle Poster
Your poster should include the
following:
1. Name of each rock type
2. How each rock type forms
3. A brief description of each
rock type
4. At least 2 examples of each
rock type
5. Illustrate the rock cycle
6. Be neat, organized,
creative, and colorful
Rubric
Content
Excellent (5 pts)
Excellent
Poster includes useful and
relevant information on all
required components of the
different rocks and the rock
cycle. Information is wellorganized and accurate.
Good
Fair
Poor
(4 pts)
(3/2 pts)
(1 pts)
Good
Fair
Poor
Poster includes relevant
Poster includes relevant
Poster does not include
information on most
information on some of the relevant information or has
components of the
components of the
few components the
different rocks and the rock different rocks and the rock different rocks and the rock
cycle. Information is
cycle. Some information is
cycle. Information is
accurate.
inaccurate and poorly
poorly organized and
organized.
inaccurate.
Work Quality & Effort
Excellent
The work done exceeds all
expectations and shows
that the student(s) is proud
of their work. It is clear
that best efforts were put
forth.
Good
Fair
The work was done with
Work is done with fair
good effort that shows
effort, but the quality is
what the student(s) is
still not what the student(s)
capable of accomplishing. is capable of. It is evident
It is evident that time was that the work was rushed.
put into this poster.
Poor
Work is done with little
effort, which resulted in a
low quality poster. It is
evident that the work was
rushed and little time was
spent on the final poster.
Work is incomplete.
Excellent
Good
Fair
Poster has an element of Poster is clear and contains
Poster lacks clarity of
creativity and style, and is
few mistakes. Good
information, creativity and
not just a list of facts.
creativity and neatness.
neatness.
Poster conveys a clear
understanding of the topic.
Poor
Poster does not convey a
clear understanding of
the subject matter and
there are many errors.
Poster is not creative.
Style & Creativity
Time Management &
Behavior
Excellent
Good
Fair
Poor
The student(s) worked
The student(s) worked well
The student(s) did not
The student(s) did not
great managing time and
on time management and
work well on time
work well on time
did a stellar job with their
did a nice job with their
management, but did
management and had poor
behavior.
behavior.
alright with their behavior.
behavior.