We made also another experiment. We took sand, marble hips and some iron. In order to separate iron we need a magnet and a small bag. Then we put the magnet into the bag and go over these chemicals. You can see that iron is magnetic and it is seperated from the two other chemicals.
We separate the sand from the marble chips by using a filter screen. Then we have all three chemicals separated which we mixed at the beginning of the experiment.
Thursday, September 9, 2010
Wednesday, September 8, 2010
Chemistry Separation Techniques
Chromotorgaphy
We take some pens (red, green, black, ...) and draw on a filter paper. Then we fill some water in a petrie dash. After that we make a small hole in the filter paper and put an other small paper through the hole. Then we can see that for instance red is made out of more than one color.
We take some pens (red, green, black, ...) and draw on a filter paper. Then we fill some water in a petrie dash. After that we make a small hole in the filter paper and put an other small paper through the hole. Then we can see that for instance red is made out of more than one color.
Subscribe to:
Posts (Atom)