## Audrey

### i HaVe DiAmOnDs In mInEcRaFt!!!

These are the pictures of our floor plans. Our scale is 50 millimeters = 1 meter because that was how we could make our Tinkercad floor plan fit onto the 3D printer surface. The length is 250 millimeters, so the equals 5 meters. The width is 175 millimeters, so that equals 3.5 meters. 3.5 x 5 equals 17.5 meters, so that meets the 25 meter limit. In our house we have a bunk bed, cabinets for storing clothes, a kinda lounge room with bean bags and a TV, a food and water storage with a mini farm above it, a dining table, and a ladder that connects to the bathroom (shown in the 1st picture).

As a collaborator, I felt that I was comfortable with sharing my ideas. I am happy with our final design because it is big enough to fit all of our awesome features in it, plus some other cool things. One thing that I noticed our group did well when working together was not wasting our time chatting about the how we should build the bed and stuff like that. A challenge we had when working together was underestimating how much space we needed and miscalculating the scale. We had to change the scale because the house wouldn’t fit onto the surface.

This is my investigative design sheet. My design is repeatable by another person because it is easy to see what I am trying to measure. I realized that the data table might have been a issue in my data collection because it is kind of vague and it doesn’t have the units of what I am measuring. An improvement that I would make if I could do this investigation again is to research outside of class instead of relying only on the information I get in class. Additional information that I would like to collect to have me understand more about this phenomenon is how learning about cells help us learn more about the future.

The one on the left is my initial model, while the one on the right is my final model. In my initial model, I did a before, during, after model without any zoom-ins and explanations. I didn’t really understand what was happening to the eggs, so I didn’t show the invisible. However, in my final model, there was evidence and zoom-ins, showing the invisible. I now understand what is happening to the phenomenon.

When I first watched the phenomenon, I thought that there was something in the liquid that had increased or decreased the egg’s mass. My evidence indicated that the mass of the egg put in corn syrup decreased by 11,11 grams, while the mass of the egg in water increased by 32.68 grams. Key evidence to support this includes the amount of liquid we put in the beaker. We first poured in 200 ml, but when we put in the egg, the liquid “increased” until it was nearly full. Now, I believe that the eggs shrink or grow because when the “security system”, or shell disappears, anything can get in and out of the egg. Because the corn syrup’s cells is bigger than the egg’s cells, some of the egg’s cells can escape, causing the mass to decrease. However, the water’s cells are smaller than the egg’s cells so the egg’s cells can’t get out but the water’s cells can get in, increasing the mass.

Material moves in or out of a cell by passing through the cell membrane. The holes in the membrane are small enough for only 1 tiny cell to pass through, so if the combined cells, which are bigger, cannot pass through. The movement of the matter is based on how big the cells are. My evidence supports this because when we put the egg into corn syrup, the egg’s mass decreased because the corn syrup’s cells were bigger than the egg’s cells, so the egg would decrease but the corn syrup can’t get into the egg.

The empty looking trees

On November 20th, 2018, we went to the Wenyu River for November’s data collection field study. The trees looked empty without the leaves, the ground brown and dirty with all the dirt and fallen leaves. Angeluna, Elizabeth, and I were here to measure to air quality, to see how the air quality changes over the year in different areas of the Wenyu River.

Data table

In November, the average micrograms per cubic meter (ug/m3000) for our measuring sites, the river, the forest, the metro line, and the road, is 0. This might be possible, because there is the AQI is 119 at 11:00, and it couldn’t have changed so much in just 2 hours. I notice that the data goes up and down every other month. For example, in September, the AQI was really good, and in October, the AQI has increased, and in November the AQI was good again today.

In January, we will return to the site and I wonder how the AQI will be. Will it be good because people had stopped burning coals, or will the AQI increase because people are burning coals and fossil fuels to keep themselves warm.

An issue that we are facing today that will get worse with a growing population is water scarcity. For example, according to NowThisWorld in the video “Why China Is Running Out Of Water”, more than 100 metropolitan areas in China have a dangerously low amount of water supply. Even though there are rivers in China, most of the water is too polluted to even touch, and only 16% of the Yellow River can be used for household purposes (2016). This is important because as the world population reaches 9 and 10 billion, more people will need to drink water. But because a lot of the water is polluted, people can only drink the freshwater. However, according to Tim Smedley  in the BBC article “Is the World Running out of Fresh Water?” water is being drained faster than it can be refilled. “California is losing water because the state doesn’t have enough water to do all the things it needs to do”, says Jay Famiglietti.