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Chemistry

Published on Nov 21, 2015

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PRESENTATION OUTLINE

HELIUM

HELIUM

  • Atomic symbol: He
  • Atomic mass: 4.002602
  • Density: 0.0001785

LANGUAGES

  • Romanian: heliu
  • Portuguese: hélio
  • Croatian: helijum
  • Welsh: heliwm
  • Slovenian: helij and Irish: héiliam
Photo by Shawn Econo

DISCOVERY

  • Helium was discovered in 1868
  • It was discovered by Pierre Janssen and Norman Lockyer.
Photo by minifig

LOCATION

  • Helium was actually discovered on the sun before on earth.
  • It can be found anywhere in the universe.
  • Specifically speaking, think compressed air tanks and lasers.
Photo by fractalSpawn

PHYSICALLY AND CHEMICALLY

  • Helium is both colorless and oderless.
  • It is nontoxic and nonflammable.
Photo by brian glanz

ALIKE

  • Helium is less dense than any other known gas, except hydrogen.
  • Basically I consider myself less stupid than the majority of my peers.
Photo by Thomas Hawk

BENEFICIALLY

  • Some beneficial uses include amusement, duh, blowing up ballons, and blimps.
Photo by Mike Hudack

INTERESTING

  • Helium is so light that Earths gravity cannot hold onto it.
  • At temperatures close to absolute zero, helium condenses to super liquid.
  • It has the properties To flow with zero friction up and over walls of containers.

IRON

  • Atomic symbol: Fe
  • Atomic Mass: 55.845
  • Density: 7.87

LANGUAGES

  • Lithuanian: Geležies
  • Latin: Ferrum
  • Polish: żelazko
  • Swedish: Järn
  • German: Eisen and Russian: железо
Photo by VinothChandar

DISCOVERY

  • Iron has been known since ancient times, there is no recorded discover or year.

LOCATION

  • Iron forms much of the earths inner and outer core.
  • Iron is found all over th earth.
Photo by blundershot

PHYSICALLY

  • Iron is a lousy metal because it rusts.
  • It is able to be bent or changed.

ALIKE

  • Iron is capable of being shaped or bent.
  • and in that way it is like me because I am adaptable.
Photo by bill barber

BENEFICIALLY

  • Iron supplements are used to treat Iron deficiency.
  • Iron helps muscles store and use oxygen.
  • Iron is also used for plenty of thing such as tools, buildings, cars, bridges.

INTERESTING

  • Pure elemental iron is actually soft.
  • Iron is actually toxic in high doses.