Monday, January 23, 2012
Friday, January 20, 2012
Monday, January 9, 2012
The 7 items
Just to tell you, my group did not find all 7 items.......
In this project, we were learning about homogeneous and heterogeneous materials. Homogeneous items are things that can't be physically seperated. Heterogeneous items are things that can be physically seperated. To learn this, we were given an unknown liquid with items inside it and were told to name all 6 of them. The materials we received included a graduated cylinder, beakers, funnel paper, a cone, a magnet, and a stove like item. Later, my teacher told us she was mistaken and there were 7 items.
First, we poured out the water into a large beaker, seperating the other items from it by putting them on the funnel paper. From the start we could tell a few items. We could see toothpicks, pebbles, a rock, beans and a seaweed like substance. However, as soon as you use the magnet on it you should see that it is metal filings. I found some salt on the paper while examining the paper, keep that in mind as that was a waste of time.
Later, we put the large beaker on the stove, and waited. After some time, we realized that the dissintegrated material was......salt? Apparently, that lone piece of salt was a misdeamer, as it just came out of the water. In the end we only came up with 5 items out of the 7. Even though we didn't succeed, we learned that the salt water was homogeneous and the rocks and other items were heterogeneous. So in the end even though we didn't succeed, we learned something. Peace.
In this project, we were learning about homogeneous and heterogeneous materials. Homogeneous items are things that can't be physically seperated. Heterogeneous items are things that can be physically seperated. To learn this, we were given an unknown liquid with items inside it and were told to name all 6 of them. The materials we received included a graduated cylinder, beakers, funnel paper, a cone, a magnet, and a stove like item. Later, my teacher told us she was mistaken and there were 7 items.
First, we poured out the water into a large beaker, seperating the other items from it by putting them on the funnel paper. From the start we could tell a few items. We could see toothpicks, pebbles, a rock, beans and a seaweed like substance. However, as soon as you use the magnet on it you should see that it is metal filings. I found some salt on the paper while examining the paper, keep that in mind as that was a waste of time.
Later, we put the large beaker on the stove, and waited. After some time, we realized that the dissintegrated material was......salt? Apparently, that lone piece of salt was a misdeamer, as it just came out of the water. In the end we only came up with 5 items out of the 7. Even though we didn't succeed, we learned that the salt water was homogeneous and the rocks and other items were heterogeneous. So in the end even though we didn't succeed, we learned something. Peace.
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