On you ipads…Go to the link and watch the movie and answer the questions.
http://www.youtube.com/watch?v=4hxIlAa8L9A
Fireworks Questions (from the NOVA movie Fireworks)
1. What is the common name of potassium nitrate (KNO3)?
2. What are the components of gunpowder?
3. What are stars? Describe the process of making them and how they work.
4. What is the fireworks capital of the US?
5. Which metal has the lowest wavelength?
6. What happens to the color of the firework if no metal salts are added?
7. When was the first recorded use of fireworks in Britain?
8. What are the three types of noise makers used in fireworks?
9. What is the approximate cost per minute for a large-scale fireworks show?
10. Of the 8000 injuries due to personal fireworks, what fraction of these were caused by illegal fireworks?
What fraction of the injuries involved burns? What fraction of the injuries happened to children?