On Monday and part of Tuesday, we went over our summary of unit 1. Doing this helped me just basically sum everything up and understand everything we learned as a whole. Once all the groups were done presenting their whiteboards, we did a sort of lab with popcorn and dry ice.
The dry ice was super duper cool and looked like it was floating on the table. We used this to show how this substance went from a solid straight to a gas. We drew a particle diagram about this. My groups looked like this:
We used the arrows to simulate the particles moving away from the solid part of the dry ice. Then, we did a lab with the popcorn. Everybody closed their eyes and Mr Abud opened up a bag of popcorn. We had to draw a particle diagram for how the smell travelend and it looked the same as the dry ice diagram we drew.
On Wednesday, we got new seats... Then we did a mini lab about with these two test tubes containing water in one and ethonol in another. We put them both in a container that had water in it and put it on a hot plate. As the water heated up, the amount of ethonol and water in each tube rose in the little thing on the top. We learned that this is how a thermometer worked. After that, we watched a video that Mr Abud took of dropping food coloring into a container of cold water and one of warm water. The red food coloring that was dropped into the warm water spread faster than the blue food coloring in the cold water.This was because the water molecules of the hot water were moving around more because the water was closer to the gaseous state since it was heated up. Then, we watched one of these weird Eureka videos about what was saw going on. Basically we learned that matter NEVER stops moving, in every state.
On Thursday, we discussed all of these things and took some notes. We compared solids, liquids, and gases and learned some new terms. Fluidity is how much a liquid flows (applies to liquids and gases). Rigidity is the rigedness or stifness of a solid. Viscosity is the resistance to flow, like Mr Abud's hair. In a solid, the particles are moving, but not very musch. They have a consistent structure called a lattice structure. It is the most dense state and it is rigid. In a liquid, the particles are moving more than in a solid. It is less dense than thes olid and has more fluidity. It doesn't have a lattice structure, instead it takes the shape of the container. It is also warmer than solids. In gas, the particles move the most. It is the last dense stat and has the most fluidity. It has no structure and is the warmest state.
Lastly, we learned the Dance of the Little Lumps (Molecules). We can demonstrate them using "wooshies" in the following ways:
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