Sunday, September 23, 2012

Experiments of the Week

 This week we did experiments everyday and I loved it. I found myself looking forward to 7th hour more and more as the week went on thinking about what we would do that day. On day in class Mr. Abud told us that we wouldn't technically get  homework and told us about tests. Its definitely different from what I'm used to but as he started to explain his reasonings it started to make more sense to me. I like that the tests are short and to the point and the fact that we can reassess. I agree with that we should we graded on what we know and we able to go back if we didn't know it at the time.
We did a lot of experiments this week. The thing that i liked about it was that after we finished the experiments we would talk about it as a class so we could consult with other students and see what we did wrong or right. One of the experiments we did was comparing mass and volume of different objects. We would take five objects and measure their volume by using the length times width times height formula. Then we would weigh the mass by using a balance. To my surprise the two numbers were relatively similar. After getting all the data gathered we graphed it to see the patterns. Along with learning that relation between mass and volume we also learned that you just because an object is small doesn't mean it doesn't have a lot of mass. Sometimes a small object can have more mass than a larger object.
Another experiment we did last week when each group experimented on a different thing. My group experimented with calcium nitrate and sodium carbonate. To start we weighed the glass of calcium nitrate and the glass of sodium carbonate together. Second we poured on solution into the other and weighed the empty cup and the mixed cup together. The mass of the solutions separate and the solutions mixed together were the same. The only difference was that when we mixed the calcium nitrate and the sodium carbonate together it turned from clear to more of a white color. This was probably my favorite experiment of the week.

No comments:

Post a Comment