http://www.youtube.com/watch?v=zrNA8-eipGE&feature=related
Response:
1. First, nothing seemed to happen. But then, the chemical reaction started: the water started turning red-orange, bubbly, and overflown the glass.
2. The lithium caught on fire while it was still on the water and started moving around.
3. You can tel it was a chemical reaction by the fact that when the cesium touched the surface of the water it exploded.
4. The second it touched the water, it formed a small fire that started moving around in circles on the water and popping.
5. First, it just bubbled a bit, then it caught on fire (small) and in the end it burst out in a huge flame that went off in less than one second leaving gas behind.
6.You can see the liquid nitrogen floating over the pool like a white wave, spreading more and more.
7. After a while it starts bubbling for a really long time until at one point you start wondering where is it all coming from
8. The gummy bear caught on fire after the substance was added
9. After you added everything, in the middle of the glass you could see the water moving.
Video:
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Bonus:
Chemical Reactions show how different elements react with eachother. The prove or argue hypothesizes that scientists made before. They tell wether the element is dangerous, deadly, explosive, or people can play around with them everyday. Wether we depend on them or not and how can we use them. How do they help us?
Response:
1. First, nothing seemed to happen. But then, the chemical reaction started: the water started turning red-orange, bubbly, and overflown the glass.
2. The lithium caught on fire while it was still on the water and started moving around.
3. You can tel it was a chemical reaction by the fact that when the cesium touched the surface of the water it exploded.
4. The second it touched the water, it formed a small fire that started moving around in circles on the water and popping.
5. First, it just bubbled a bit, then it caught on fire (small) and in the end it burst out in a huge flame that went off in less than one second leaving gas behind.
6.You can see the liquid nitrogen floating over the pool like a white wave, spreading more and more.
7. After a while it starts bubbling for a really long time until at one point you start wondering where is it all coming from
8. The gummy bear caught on fire after the substance was added
9. After you added everything, in the middle of the glass you could see the water moving.
Video:
<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/Ch93AKJm9os?fs=1&hl=en_US"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/Ch93AKJm9os?fs=1&hl=en_US" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>
Bonus:
Chemical Reactions show how different elements react with eachother. The prove or argue hypothesizes that scientists made before. They tell wether the element is dangerous, deadly, explosive, or people can play around with them everyday. Wether we depend on them or not and how can we use them. How do they help us?
Ana-this was a very well-organized post. I would have liked to see more of your observations for each chemical reaction. Was there a pattern of specific properties you saw that would be evidence that a reaction occurred? What about that last reaction? How do we know it isn't a physical change?
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