1. The first reaction I'm going to talk about is the gack reactions which was (before we made it) a very ordinary piece of glue.How do we know that this was a reaction and not a mixture. For this one very simple reason the gack changed the texture from liquid to solid. Which is one very big step. What we ended up with (gack) kind of reminds me of cornstarch which when you poke it is liquid and soft but they it changes into a solid when you try to hit it.
2. The next reaction I'm going to talk about is the blue salt one. At the begin we stated out with just water until our teacher Dr. G brought out this blue substance (which later on we found out is poissoness salt) We had a lot of fun sipping it in and then it came down to see why this was a reaction. This is because the color of the water which we pored in the tube changed, bubbles were also visible from the copper sulfate which were rising to the top of the water and continued this pattern for an hour (almost 2)
2. The next reaction I'm going to talk about is the blue salt one. At the begin we stated out with just water until our teacher Dr. G brought out this blue substance (which later on we found out is poissoness salt) We had a lot of fun sipping it in and then it came down to see why this was a reaction. This is because the color of the water which we pored in the tube changed, bubbles were also visible from the copper sulfate which were rising to the top of the water and continued this pattern for an hour (almost 2)
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