One thing I learned from this unit was density. Density is the amount of mass per cubic volume. And the formula for density is mass divided by volume. I learned something about this because Mrs. Hill taught me about a heart, and if you spilt the heart in half horizontally, there's a M and the top and a V at the bottom. The line sometimes represent divide in division. So M= Mass and V=volume. Mass divided by volume equals to density. I think one of the most memorable and meaningful things I did was the submarine because that taught me how to problem solve and to revise over and over again if I didn't get something or if it didn't become successful. It was also meaningful because it taught me that different people can have different ideas. Another thing that was memorable and meaningful is the layers of liquids because that also had to do with density. For example, the bottom color is at negative buoyancy because the liquid is denser than the others. And this is meaningful because I learned more about density and understand it better than before.
Here's a picture of layers of liquids:
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