How Does Mrs. Leonardos Affect Density?
Question 1: Evaluate other 's work: There are limitations/doubts about Mrs. Leonardos ' conclusion. In the data ,it shows two different densities which might mean she is using two different type of clay and it shows this is not a controlled experiment since in the background it states "... she begins to wonder if each differently sized piece has the same density." So if she is trying to see if the "size" of a clay will affect the density so changing two factor results in a uncontrolled experiment. Also in Mrs. Leonardos ' conclusion she didn 't use text evidence or any evidence from experiment supporting her claim. According to her conclusion it states "Also I measured the mass three times for each sample". A good conclusion will have …show more content…
According to Physical Properties: Density by Martha Day and Anthony Carpi it states "because it is a ratio, the density of a material remains the same no matter how much of that material is presented." and "One metric ton of either feathers or bricks will have an identical mass of 1,000 kilograms (one metric ton). However, a metric ton of feathers will occupy a volume of almost 400 million cm3 (about the size of a large screen TV). The bricks are denser than the feathers because their mass is packed into a smaller volume." This shows that no matter how big the size is, it will not affect density since in the text the feathers were huge but the bricks are really small compared to the feathers but the density of the brick is still larger. Question 4 : Final written procedure: 1) Make a table with 4 parts (clay size, mass, volume, density) and 3 trials. 2) Get 3 pieces of green modeling clay. 3) Cut and make sure the modeling clay is small, medium and large. 4) First measure the mass of each modeling clay with a triple beam balance to prevent the modeling clay from getting wet. 5) Measure the volume of each modeling clay with a graduated cylinder. 6) Record all the results to the tenths place or rounded to the nearest tenths place. 7) Repeat 2 more time from number 4 to 6, using two new batches of green modeling clay (to reduce
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