By- Shubhra
 Oxygen

is a chemical element with
symbol ’O’ and atomic number ’8’.
 Oxygen is an important part of the
atmosphere, an...
 Oxygen

is a colorless, odorless
gas with the molecular
formula O2, in which the two
oxygen atoms are chemically
bonded ...
Electrons

Nucleus
 heavier than air
 soluble in water
 without smell or taste
 the gas is colourless, odourless

and tasteless
 liquid ...
Melting point : -218.8 °C
( turns from solid to liquid )

Solidified
O2

Freezing point: Below -218.8 °C
( turns from liqu...
Oxygen is very reactive and capable of
combining with most other elements.
 It is essential for the respiration of all
pl...
Approximately 2/3 of the mass of the
human body is oxygen.
 Oxygen is a combination of two Greek
words: ’oxys’, meaning ‘...


The oxygen cycle describes the
movement of oxygen within its
three main reservoirs:
1. the atmosphere
2.the biosphere
3...
 Plants

mark the beginning of the
oxygen cycle. Plants are able to
make ‘oxygen’ for us by the process
known as photosyn...
Oxygen-6th grade_Brief
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Oxygen-6th grade_Brief

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This PPT leads to a brief description of the gas- Oxygen.

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Oxygen-6th grade_Brief

  1. 1. By- Shubhra
  2. 2.  Oxygen is a chemical element with symbol ’O’ and atomic number ’8’.  Oxygen is an important part of the atmosphere, and is necessary to sustain most terrestrial life as it is used in respiration.  Discovered in 1774.
  3. 3.  Oxygen is a colorless, odorless gas with the molecular formula O2, in which the two oxygen atoms are chemically bonded to each other. An Oxygen Molecule
  4. 4. Electrons Nucleus
  5. 5.  heavier than air  soluble in water  without smell or taste  the gas is colourless, odourless and tasteless  liquid O2 and solid O2 have a light blue color  very reactive
  6. 6. Melting point : -218.8 °C ( turns from solid to liquid ) Solidified O2 Freezing point: Below -218.8 °C ( turns from liquid to solid ) Liquid O2 Boiling point: -182.962 ° C ( turns from liquid to gas )
  7. 7. Oxygen is very reactive and capable of combining with most other elements.  It is essential for the respiration of all plants and animals and for almost all combustion.  This gas is used in various industrial chemical applications.  It is used to make acids, sulfuric acid, nitric acid and other compounds. 
  8. 8. Approximately 2/3 of the mass of the human body is oxygen.  Oxygen is a combination of two Greek words: ’oxys’, meaning ‘acid’, and ’genes’, meaning ‘forming’.  The atmosphere of Mars contains about 0.15 percent oxygen.  Nearly half of the mass of Earth's crust is made up of oxygen. 
  9. 9.  The oxygen cycle describes the movement of oxygen within its three main reservoirs: 1. the atmosphere 2.the biosphere 3.the lithosphere.
  10. 10.  Plants mark the beginning of the oxygen cycle. Plants are able to make ‘oxygen’ for us by the process known as photosynthesis.  Animals form the other half of the oxygen cycle. We breathe in oxygen which we process call respiration.

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