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Thursday 23 August 2018

Information about Glow in the Dark

1. WALT :
Make connections between different sources of information.

Meaning of WALT - Make links between different websites or videos of information.

2. Collection of Information :
Glow in the Dark known as Luminescence simply requires chemicals that store energy into the light.
These special substances are called phosphors (Different wording - Phosphorescence).
Make sure the expose the item to a light for a while so that it could glow in the dark again.
Chemiluminescence makes the object glow in the dark because of the chemical reaction.
Phosphors found in glow-in-the-dark toys are zinc sulfide and strontium aluminate.  
Radioluminescence uses phosphors that are constantly charged by adding radioactive elements, such as radium, to them.
One from nature is Bioluminescence. Some creatures, such as fireflies and jellyfishes, contain chemicals within them the causes things to glow. Some creates glow for protection.


  • Glow in the dark - Also known as luminescence
  • Chemicals that restore energy when exposed to light
  • These special substances are called phosphors
  • Needs to be exposed to light (for energy) to be able to glow in the dark
  • They  restore their energy over time



3. Words :

  • Luminescence
  • Phosphors or Phosphorescence
  • Chemiluminescence
  • Zinc Sulfide
  • Strontium Aluminate
  • Radioluminescence
  • Radioactive Elements
  • Radium
  • Bioluminescence


4. Diagram (Glow in the Dark Experiment)

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