Chemistry sparkles questions assignment

Watch the following videos and answer the questions. Any information use needs to be cited.

• Sparklers:

https://www.thoughtco.com/how-do-sparklers-work-607351

• Making Sparklers:

https://thekidshouldseethis.com/post/54590722298

• Sources of Light:

https://thekidshouldseethis.com/post/explore-the-science-behind-fireworks-and-the-galaxy

• A different kind of Firework:

https://thekidshouldseethis.com/post/dashuhua-nuanquan-molten-iron-fireworks

• Other sources of Energy:

https://thekidshouldseethis.com/post/youre-a-firework-scientifically-speaking

1. (Existing knowledge, research and views) Describe how sparklers work. Provide as much detail as you deem necessary.
2. (Existing knowledge, research and views) Describe how the energy generated by the combustion reaction is converted to the colors and sparks of a sparkler.
3. (Analysis) What other sources of energy can be used to generate the observed colors?
4. (Experiment design) Propose at least one method for making the sparks brighter.
5. (Experiment design) Sparklers are classified as handheld fireworks and it is illegal to light them in Houston, Texas. Describe the necessary safety precautions that would minimize the risk associated with lighting a sparkler.
6. (Existing knowledge, research and views) Identify the colors that can be produced by sparklers. Indicate the elements responsible for each color.
7. (Analysis) Provide at least two examples for similarities between sparklers and fireworks.
8. (Analysis) Provide at least two examples for differences between sparklers and fireworks.
9. (Experiment design) Each element has an emission spectrum showing the colors emitted by the excited atoms, but sparklers show only one color. Propose a method by which all the colors of the emission spectrum could be visualized.
10. (Existing knowledge, research and views) Using the videos as your reference, describe at least two applications for converting energy into light in as much detail as you deem necessary.

11.       (Analysis) Propose at least one new application that uses the conversion of energy into light beyond the ones presented in the videos. Explain how it would work