Showing posts with label chemical bonding. Show all posts
Showing posts with label chemical bonding. Show all posts

Monday, February 3, 2014

JC Chemistry - Electrolysis of Water

Watch the 2 clips below to revise Electrolysis. Please note green coulur in clip 2 is only food dye so we can see reaction taking place. Which gas is which and why?  



Wednesday, January 8, 2014

JC Science - Flame Tests

Hi folks
See the colour changes when we react a metal with oxygen to create a metal oxide. Can you remember which colour for which metal?



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Wednesday, April 24, 2013

SciFest 2013

 
Here are a list of examples of Magh Ene student entries to SciFest 2013.For further information on each investigation go to the Scifest page on this blog or otherwise you can click here. Stay posted for updates from other projects

Students and their Investigations

1. Eimear Colreavy, Rozarah Glenane and Laura Russell
   A Study into the effect of colour on heat/light absorption

2.Jack Ronayne and Radek Wymentowski
  Stealth Shapes: Which 3D geometric shapes scatter light the most

3. Daithi McGloin and David Kerrigan
  A Study into the effect of bridge design on weight bearing capacity

4. Aron Jones and Orin McGann
  A Study into the effect of peppermint on human speed reaction tests


Tuesday, April 23, 2013

JC - Fun Science Workshop

Many thanks to Mr John Daly (retired chemistry teacher, Blackrock College) and his wife Deirdre for their exciting Science Workshop which they delivered to our 1st and 2nd years last Monday. A wide variety of experiments were demonstrated with some memorable results.

 Here is a clip form the presentation showing "Catalysis of Hydrogen Peroxide to form Oxygen gas"
(using some washing up liquid to give some excellent visuals!!!)

 

 Some of the other experiments were
  • Sublimation of Dry Ice and the resulting effects on pH (with good visual effect)
  • Combining Oxygen and Hydrogen gas to form liquid water (with good sound effect)
  • The 'Whoosh' bottle (vapourisation of methanol)
  • The effect of liquid Nitrogen on Air Pressure in a balloon
  • and many more.....(see pictures below)


Wednesday, January 16, 2013