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Natural sciences

The earth and beyond

Rock formations

Educator section

Memorandum

Sedimentary rock formations formed by earlier life forms

  • Sketch: The search for fossil fuels (oil)

Key:

1. Oil drill

2. Ocean

  1. Ocean floor
  1. Penetrable rock
  2. Pipeline
  3. Oil
  4. Sedimentary rock

8. Impenetrable rock

Sedimentary rock formations:

Layers of rock on the earth's surface and under water . Formed by debris or earlier life . Debris type forms through the breaking up of rocks and the scattering of the pieces by wind and water to lower levels where they form sand and mud . The ones formed by earlier life are created by the compression of skeletons to form limestone .

Leaner section

Content

Activity: to discuss sedimentary rocks as a type of rock formation [lo 2.3]

  • Large areas of the earth are covered in sedimentary rocks. These rocks are not formed on the surface of the earth only, but frequently also under water. The formations occur in layers.
  • Scientists distinguish between two kinds of sedimentary rock.

SEDIMENTARY ROCK FORMED BY “RUBBLE":

  • Existing rocks are broken down through the action of wind and water. The small bits of rock that result from this are carried along in streams and rivers until they reach the sea, where it is deposited as layers of sand and mud.

SEDIMENTARY ROCK FORMED AS A RESULT OF EARLY LIFE:

  • These rocks consist of material from organisms that were alive in very early times.
  • The following illustrations show how these rocks were formed:
1. When fish and other organisms that live in the sea die, their remains sink to the bottom of the sea.
2. Their skeletons and the calcium of their shells form layers on the sea floor.
3. With many years passing, the layers become compressed. They become thick layers of rock known as limestone.
4. These are the main rocks that we see because they are formed on the surface of the earth. They usually are soft.
  • Sedimentary rocks are of importance to people because they provide people with oil, earth gas, coal and stone for building. Sometimes they also contain fossils that provide information about what the earth was like millions of years ago. We'll be learning more about fossils in the rest of the module.
  • Provide captions for the sketch:

The search for fossil fuels (petroleum)

1. ___________________________________________________________________

2. ___________________________________________________________________

3. ___________________________________________________________________

4. ___________________________________________________________________

5. ___________________________________________________________________

6. ___________________________________________________________________

7. ___________________________________________________________________

8. ___________________________________________________________________

  • Explain what you know about sedimentary rocks (in thirty words). Use your own words.

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Assessment

Learning Outcome 2: The learner will know and be able to interpret and apply scientific, technological and environmental knowledge.

Assessment Standard 2.3: We know this when the learner categorises information.

Questions & Answers

are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
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Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
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Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
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Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
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Smarajit Reply
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Source:  OpenStax, Natural sciences grade 6. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11079/1.1
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