It's a pity because as far as we found, the videos can't be shown in iPhoto album :( and we took nearly all videos. But at least I can put it up here :)
The element gives off white light when burnt.......should be magnesium.
This element gives off orange/yellow light. It is probably calcium.
Giving off red and a little magenta light, this element may be lithium.
This element gives off orange light when first ignited, but towards the end the light emitted becomes bright yellow. It can be sodium.
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