Alka-Seltzer Surface Area

With our observation of the Shawangunk formation, we see a sedimentary rock formation containing a range of grain size. Such sizes range from pebbles (3cm-5cm), fine-grain sand, and medium-grain sand. There is some grading towards the bottom left of the outcrop known as a reverse grading with some small cross beds present (Figure 2). The grading occurs towards a slight part of the outcrop where we see the grading beginning as fine grain sediments and working up to coarser grain. With moderate sorting we see variations of degree of sorting per bed. As the degree of sorting varies as does the sphericity. The sediment bedding is well seen ranging in sizes of +/--20 cm to 40 cm. This outcrop has thick beds as one can see the basic units with cracks in between each (Figure 3). With mostly tabular beds consisting of sub-angular, and sub-rounded sediments, this outcrop also consists of some ventricular beds (Figure 4). When looking at figure 4, we have a small space of a ventricular bed present. This is because the bed comes in, pinches thicker bedding,

Prepare timer to start at the exact time the Alka Seltzer is dropped into the beaker of water.

We took the plastic cup and added the stir bar into it, then we inserted the plastic cup and the stir bar into the styrofoam cup. Next, we secured the clamp on the ring stand rod, and then added the solution calorimeter to the other end of the clamp. Following that, we took the beaker and filled it with distilled water and transferred it to the graduated cylinder. Then we poured it into the plastic cup with the stir bar in it. We turned the stir plate to number 6 and let the water stir around for 10 seconds, then we added in our first effervescent tablet and let it for about a minute or until it was fully dissolved. We added an extra tablet to every test until we reached the total number of tablets we could insert which was 5. After we were finished with each test, we washed out plastic cup, the solution calorimeter, and the stir

After added, pick up the beaker and swirl it around lightly for a short period of time.

6.Once timer has gone off after 30 seconds, quickly remove pot from heating surface and quickly pour into bowl.

Christopher and Kate noticed that after a rainstorm some of the rocks in their yard appear to shrink. They wondered how the mass of the rocks changed when dissolved in water. To

H2o co2 and h2co3 help in the dissolution of limestone and which produces bi carbonate which helps in the forming of caves and landscapes.

After the 5-minute period, take the Elodea and thermometer out of the beaker, pour the mixture into the beaker down the drain and rinse.

Complete this week’s lab by filling in your responses to the questions from Geoscience Laboratory. Although you are only required to respond to the questions in this worksheet, you are encouraged to answer others from the text on your own.

water during the equilibration period of 10 minutes. Vials 1,2, and 3 should be in the bath containing water at

The time for each trial will be measured. The time will start when the tablet is in the acid and it will end when the reaction is complete and the whole tablet has

seltzer tablet into it, and as I did so I started the timer. When Alka

1) Separate the solid from the liquid in the beaker by decanting the liquid. Ask your instructor to demonstrate the correct procedure.

Dispense .5 mL water into the already weighed conical vial, replace cap and face insert on its down side.

This lab showed how mechanical weathering can work. Mechanical is where objects physically break apart. In the lab, Sugar cubes had to be shook in a jar for 3 minutes to demonstrate mechanical weathering and the cubes represented sedimentary rocks. One sugar cube for 3 minutes, then 2 cubes for 3 minutes, then 3 cubes for 3 minutes. The cubes would be weighed and sketched. The hypothesis was that the cubes would become more round and have less mass after being shaken, and they did.The type of mechanical weather involved was abrasion and gravity. Gravity would bring the cubes down, making them hit the sides of the jar and break apart. Abrasion would happen when 2 or more sugar cubes would scrape against each other. The data did not make a