We did a meetup yesterday that incorporated terms like diffusion, emulsion, and absorption. Megan did most of them. However, she spent a lot of her time on the diffusion one. This one you wet your paper and then you add watered down tempura paint to the pictures. In time, the paint should move across the wet paper. That night, we did two more. One where you
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We did a meetup yesterday that incorporated terms like diffusion, emulsion, and absorption. Megan did most of them. However, she spent a lot of her time on the diffusion one. This one you wet your paper and then you add watered down tempura paint to the pictures. In time, the paint should move across the wet paper. That night, we did two more. One where you add tempura powdered paint to a wet piece of paper. This is supposed to show the powder dissolving and then diffusion. However, if the kids put on two much powdered paint , this effect isn't seen. I am going to have Megan spray hers with a water bottle. We just did this. I am curious if we can actually get it to dissolve and then diffuse. Maybe we should try this with other types of paper.
Okay, the next experiment we did was to add some red tempura paint with oil and some blue tempura paint with water. Then, onto a dry piece of paper, we added the tempura paint/water mixture first in drops. Then, on top of these drops, we added drops of tempura paint/ oil mixture. Megan added a lot of this. I will be uploading a photo shortly.
There was a another one where you added oil and tempura paint to the surface of water and then you laid your paper on top. I am going to do this one to, with Megan, at some point.
We also did a lab that Megan's is familiar with. We put a water and food coloring mix and then oil into a big bottle. Then, I shook it. All the while, I was discussing insolubility . I asked them, is it going to mix. Is it staying mixed? Why or why not? Then, we added soap, and observed. I am not sure what I expected. Really I expected to see smaller globules where the soap broke up the grease molecules. We did separation, but I couldn't see it exactly. So, I am going to repeat it again with Megan.
Okay, the next experiment we did was to add some red tempura paint with oil and some blue tempura paint with water. Then, onto a dry piece of paper, we added the tempura paint/water mixture first in drops. Then, on top of these drops, we added drops of tempura paint/ oil mixture. Megan added a lot of this. I will be uploading a photo shortly.
There was a another one where you added oil and tempura paint to the surface of water and then you laid your paper on top. I am going to do this one to, with Megan, at some point.
We also did a lab that Megan's is familiar with. We put a water and food coloring mix and then oil into a big bottle. Then, I shook it. All the while, I was discussing insolubility . I asked them, is it going to mix. Is it staying mixed? Why or why not? Then, we added soap, and observed. I am not sure what I expected. Really I expected to see smaller globules where the soap broke up the grease molecules. We did separation, but I couldn't see it exactly. So, I am going to repeat it again with Megan.
