Difference between revisions of "School science experiments"
| Line 1: | Line 1: | ||
=Purple Flame Magic= | =Purple Flame Magic= | ||
| − | <br>'''Materials''' | + | <br>'''Materials'''<br> |
5g of pottassium permanganate cystals, 2ml of glycerol, a | 5g of pottassium permanganate cystals, 2ml of glycerol, a | ||
porcelain tile and a dropper. | porcelain tile and a dropper. | ||
| − | <br>'''Procedure''' | + | <br>'''Procedure'''<br> |
Pile 5g of powdered KMnO4 crystals on a porcelain tile.Make a small | Pile 5g of powdered KMnO4 crystals on a porcelain tile.Make a small | ||
depression on the centre of the pile. Using a dropper or a glass tube add carefully | depression on the centre of the pile. Using a dropper or a glass tube add carefully | ||
| Line 10: | Line 10: | ||
After a few seconds a white puff of smoke is produced followed by sparks and purple | After a few seconds a white puff of smoke is produced followed by sparks and purple | ||
flame. | flame. | ||
| − | <br>'''Discussion''' | + | <br>'''Discussion'''<br> |
This experiment demonsrtates spontaneous combustion. KMnO4 | This experiment demonsrtates spontaneous combustion. KMnO4 | ||
oxidizes glycerol exothermically producing heat and light. | oxidizes glycerol exothermically producing heat and light. | ||
| − | <br>'''Shared by/ Source''' | + | <br>'''Shared by/ Source'''<br> |
Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu | Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu | ||
| − | |||
=Soap hating and sugar loving match sticks= | =Soap hating and sugar loving match sticks= | ||
Revision as of 08:04, 22 August 2014
Purple Flame Magic
Materials
5g of pottassium permanganate cystals, 2ml of glycerol, a
porcelain tile and a dropper.
Procedure
Pile 5g of powdered KMnO4 crystals on a porcelain tile.Make a small
depression on the centre of the pile. Using a dropper or a glass tube add carefully
about 3 to 4 drops of glycerine to the depression.
After a few seconds a white puff of smoke is produced followed by sparks and purple
flame.
Discussion
This experiment demonsrtates spontaneous combustion. KMnO4
oxidizes glycerol exothermically producing heat and light.
Shared by/ Source
Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu
Soap hating and sugar loving match sticks
Materials
Procedure
Discussion
Shared by/ Source
Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu
Coin Challenge
Materials Procedure Discussion Shared by/ Source Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu
Magical Wand of Fire
Materials Procedure Discussion Shared by/ Source Praveen Kamath Sir, GHS Ankanahally, Somavarpet Taluk, Kodagu