~~Group+7

=__Model 1-1 Science Lesson Experiment (Identity of the Unknown Objects)__=

-Team Members:
(Remember, first names ONLY for safety purposes! Each group should have a designated Leader and Editor!) Matt, Betty, Karla

-Materials:
(Create a materials __listing__) 1. Unknown cubes 1-10 2. Balance 3. Graduated cylinder 4. Water 5. Calculator 6. Ruler

-Methods:
(Create a methods __listing__ in complete sentences.) 1. Find the mass of each of the unknown cubes using the balance. 2. Record the data in the data table. 3. Measure a side of each of the unknown cubes 1, 2, and 4-10 using a ruler. Record data. 4. Calculate volume. 5. Record data. 6. Using water displacement method find the volume of unknown object number 3.

-Hypotheses:
(Develop hypotheses about the ID of the objects based upon initial observation and through debate and process of elimination among your group members. Create a table with the object #, hypothesis as to ID, and reason for hypothesis. Use MS Excel and make sure include a table number and title underneath it.) Our hypothesized identities are presented in Table 1 below.

TABLE 1: Hypothesized identification of 10 unknown objects
 * Object ID || Hypothesized ID || Reasoning ||
 * 1 || brass || feels dense/color ||
 * 2 || aluminum || less dense but still metal/color ||
 * 3 || quartz || crystalline structure/prior knowledge ||
 * 4 || PP || process of elimination ||
 * 5 || iron || rust appearance/feels dense ||
 * 6 || balsa || very light mass/soft wood ||
 * 7 || PVC || process of elimination ||
 * 8 || Poplar || some evidence of fine-grainy pattern ||
 * 9 || oak || prior knowledge of what oak looks like ||
 * 10 || acrylic || prior knowledge of what acrylic looks like ||

-Quantitative Data:
(What quantitative data are relevant to determining the identity of the objects? What is quantitative data? Think in terms of density. Make all measurements in metric units and round to the tenths place at the final step of calculation. Your final product in this section will be a MS Excel table with the Cube #, mass (g), Volume (cc), density ( g/cc ) Make sure include a table number and title underneath it.

-Qualitative Data:
(What qualitative data are relevant to determining the identity of the objects? What is qualitative data? Brainstorm and create a list of qualitative data categories that could be used for the objects. Create a table in MS Excel with the Cube # and all qualitative data. Make sure include a table number and title underneath it.) The following table present our qualitative data results for the 10 unknown cubes. Table 3: Qualitative Data for 10 unknown objects
 * Cube ID # || Does it float? Y/N || Visual Description ||
 * 1 || N || metallic, feels dense, brassy color ||
 * 2 || N || metallic, slightly dense, dull silvery color ||
 * 3 || N || hexagonal, clear crystal ||
 * 4 || N || charcoal gray, smooth surface ||
 * 5 || N || metallic, rusted, feels dense, dark steel color ||
 * 6 || Y || light-colored with few wood grains ||
 * 7 || N || off-white, slightly grooved surface ||
 * 8 || Y || light-colored with small wood grains ||
 * 9 || Y || medium-colored with medium wood grains ||
 * 10 || N || Clear with smooth surface ||

-Research on Cube Possibilities (Citations Also, MLA):
 [Create a table in Excel with a proper table number and title that contains each of the names of the possible object identities (see the list on the "model project page" ). In addition, this table should contain a column for density found on the internet, qualitative properties found on the internet, and the MLA Citations that correspond to the information.]

-Final Identifications:
 (Develop your final ID's of the objects based upon your research of the densities, the calculated densities, and the qualitative research/ collected qualitative data. Create a table with the object #, final guess re: ID, and your REASONING.) Table 5: Final identification of 10 unknown cubes and reasoning factors
 * Cube ID || Final Guess of Identity || Reasoning ||
 * 1 || Brass || Color and density ||
 * 2 || Aluminum || Color and density ||
 * 3 || Quartz || Hardness, crystal structure and density ||
 * 4 || PVC || Density ||
 * 5 || Steel || Magnetic quality and density ||
 * 6 || Pine || Density and color ||
 * 7 || Nylon || Striations on surface and density ||
 * 8 || Poplar || Density and color ||
 * 9 || Oak || Density and grain texture ||
 * 10 || Acrylic || Density and prior knowledge ||

-(Optional) Graph of Objects:
The data demonstrates that objects that have a density less than water (1.0 g/cm3) will float in water. According to the graph, objects 6, 8, and 9 will float while all other objects will sink.

-Images:
Please add images of your group completing this experiment here. Each image should have a figure number and figure title. You may also include images from the internet so long as they are from Creative Commons Resource such as Wikipedia and youinclude citations.