Structures and Properties of Matter: Density Column Project Assigned Name: Due Density columns are an extended version of oil and water where multiple colored liquids are layered for an aestheticallypleasing effect. The column is made of layers of liquids of different densities. The highest density liquid is on the bottom of the column. Going up the column, the density of each successive layer decreases, with the least dense layer on top. OBJECTIVE: Student will create a liquid density column with a minimum of 3 liquids. Density Column should include: *container must have a lid *container must have your full name, date, and period on it. *NO flammable substances or drinking alcohol may be used. Documentation must include: *materials list *procedure listed in a step-by-step method *graphic that identifies what each liquid is and what layer it is in - identifies the liquid - identifies color of the liquid - identifies the layer each liquid is placed in - labeled from top to bottom. Some resources: http://www.stevespanglerscience.com/lab/experiments/seven-layer-density-column http://www.syp.mtu.edu/docs/Lesson_Plans/Seven%20Layer%20Density%20Column.pdf http://www.hometrainingtools.com/density-column-science-project/a/1737/ http://www.exo.net/~donr/activities/Five-Layer_Density_Column.pdf PROJECTS will REST for at least THREE DAYS before scoring. Liquids must maintain their layering this entire time. Criterion B - Inquiring and designing Scoring: 1 - 2 = 2 or fewer layers or a non-approved liquid was used; may have insufficient documentation 3 - 4 = 3 tor4 visible layers or a non-approved liquid was used; may have insufficient documentation 5 - 6 = 5 or more visible layers; correct documentation 7 - 8 = 5 or more visible layers with a solid object suspended between layers; correct documentation 7-8 i. describe a problem or question to be tested by a scientific investigation 5-6 i. outline a problem or question to be tested by a scientific investigation 3-4 i. state a problem or question to be tested by a scientific investigation ii. outline and explain a testable hypothesis using correct scientific reasoning ii. outline and explain a testable hypothesis using scientific reasoning ii. outline a testable hypothesis using scientific reasoning iii. describe how to manipulate the variables, and describe how sufficient, relevant data will be collected iii. outline how to manipulate the variables, and outline how sufficient, relevant data will be collected iv. design a logical, complete and safe method in which he or she selects appropriate materials and equipment iv. design a complete and safe method in which he or she selects appropriate materials and equipment iii. outline how to manipulate the variables, and state how relevant data will be collected iv. design a safe method in which he or she selects materials and equipment 1-2 i. state a problem or question to be tested by a scientific investigation, with limited success ii. state a testable hypothesis iii. state the variables iv. design a method, with limited success 0 The student does not reach a standard described by any of the descriptors below