Independent Research Project Scientists use what they know about the world and how it works and combine that knowledge with careful observations and measurements of natural phenomena to discover new details about how things work. This year we will establish a strong basic understanding of the matter and the changes that matter undergoes. Your project as science students is to use your observation, measurement, and analysis skills to find out a question that you may be interested to investigate to further increase your knowledge. The first thing you will need to do is to formulate a question that will be the basis of your research. No more than two people may work on a project together. Students may choose to enter the science fair. Papers for the science fair must be filled and submitted in advance (October). Please let your science teacher know if you are planning to participate. Attached are some guidelines to help you chose your research topic and formulate a question. You should meet all of these requirements. It is suggested that you use one of the lab techniques that you will develop throughout the year, including gravimetric analysis, titration, calorimetry, spectroscopy, etc, to investigate the relationship between two variables from the list below. You may investigate other variables not shown here, but you must make sure that all data is quantitative. You can also use Vernier probes that are listed on the last page of this document. Some topics are: Mass Volume Concentration Temperature Absorbance of light Reaction Rate pH,pKa,pKb Vapor pressure Atomic structure Surface area Enthalpy of Reaction Voltage Molecular structure Pressure Conductivity 1 Buffer capacity Amps Boiling/Melting point van’t Hoff factor Lattice energy Solubility Molar mass Electronegativity Ionization energy Toxicity Heat of combustion Caloric content Freezing point depression Viscosity Boiling point elevation In reality, once a question is formulated, it is submitted to a government agency or private contractor that will review the proposal, to either approve, decline, or edit it with additional requests that they will require in order to fund the research. You’ll be submitting your proposal to your teacher, who will review the proposal and either approve, decline, or provide additional requests for your project. Your proposal should be typed; double spaced, and should include the following items: Experimental Question: A detailed statement of your question Rationale/Hypothesis: Explains what your question is trying to answer. Why is it that answering this question is important? What information will it provide, and why will be beneficial? Some background research here will be useful to help support your rationale and hypothesis, as well as references to previous work done in this area (essentially a rough version of the introduction of your report).If you include references to previous work, please include a Work Cited page. Outline of Experiment: An explanation of how you will answer your question (i.e. a procedure of your experiment). This section include a timeline that you will need to complete to keep you on track and on time to meet your deadline, as well as a list of materials needed and a data table you will use to keep track of your data. Feasibility: Is it possible to answer this question soundly? Is it possible to perform the experiment at school or at home? Financially, is it possible? 2 Each person in your group will be responsible for developing their own question and submitting a proposal. You will receive some class time before proposals are due to meet with your partner and discuss the progress each of you has made. At that time, you should each bring in your proposal so that your group members may review them and give suggestions. Shortly after the proposal due date, each group will meet with their science teacher and present their different project ideas, and the best one will be approved for the group to work on. I will be looking for the following criteria when picking the best project ideas: Chemistry related Materials/time needed are manageable Methods are possible (experimentation will lead to results)the more developed your plan is the more likely I will see as possible/ understand your thought process. Hypothesis is reasonable based on information available on the topic (the more developed your intro is the more likely I will see this connection). Once a week each group will be given a class time to work on the project and briefly meet with their teacher to show the progress you are making. You will need to complete an updated sheet (see attached) to bring to the meeting, as well as your most up-to-date edition of your report to show your progress. In addition, once a week, students will fill out the Peer Review rubric. This will contribute to the individual portion of the IRP grade. Peer Review rubrics should be filled out honestly. 3 Developing IRP Ideas Choosing your topic and designing your experiment/investigation is very challenging and important to the overall success of your project. Please think deeply about what kind of project you want to do. Consider: 1. Areas of interest in Chemistry, particularly areas that also lend themselves to further investigation by you under the confines of this project. 2. Areas of interest/comfort in science investigation methods a) Do you want to go outside and collect original data for a smaller-scale analysis? b) Do you prefer to stick to data set that already exists for a larger-scale data analysis? c) Do you want to do a combination/comparison of (a) and (b)? d) Do you want to create a model of a phenomenon in the lab that will provide results that can be applied to the natural phenomena? 3. Students will have access to lab material during their Chemistry class once a week. Students should plan accordingly and maximize time with lab equipment. Additional lab time will not be offered. This includes absence due to sickness, fieldtrips, half days, and snow days. Plan ahead! 4. Students will be provided with most materials in the lab. This will include computers and the Verniers Probes. Spectronic 20’s will also be available for some groups. It is possible to complete a wide variety of projects given the available equipment. Students may be asked to supply some materials if it deviates from the chemistry standard equipment. Students must sign up for all equipment the class period before the investigation time. This includes probes and computers. Plan and sign-up early. 4 Criteria for Acceptance of IRP: All independent research projects must meet these criteria to be acceptable: CHECH OFF Criteria for Acceptance Is the topic on Chemistry? Does this project have testable/ measurable hypothesis? Data must be collected and analyzed in order to support a question/hypothesis posed. Does the project attempt to answer a question/describe a relationship that cannot already be answered sufficiently by reading a textbook or other common resource? Will it be useful in describing current and predicting future behavior? It is ok if you are quantifying a known relationship for predictive purposes or collecting your own data in the field to support/test a known relationship Generally “what is it” questions are research in textbook questions, not research investigation questions…. Are the methods realistic given the materials and time available? Do the instruments or data sets exist that you need? Do they measure what you are trying to measure accurately enough to be useful? Are the data collection/experimental design good enough to eliminate variables you want to hold 5 constant? Is the experiment safe and humane? Is it challenging enough to involve students for a couple of months of research and data collection? Other things to consider: How much data/ how many trials will you need in order to have enough data to answer the question fully? If the answer to your question was “yes” or positive, what would you expect the data to look like? What about if it is a “no” or negative? What errors could occur in your procedure that might give you a false positive answer? What experiments (controls) could you do to rule out these types of errors? What about false negative? Vernier LabPro Equipment: Sensors: Temperature probe- Range: -25°C to +125°C pH Sensor –Range: 0 to14 Gas Pressure –Range: 0 to 2.1atm Colorimeter-Allows to study the light absorption of solutions. It can be used with Beer’s Law experiments, determining the concentration of unknown solutions, or studying the changes in concentration over time Conductivity – This probe has the ability to test for salinity, total dissolved solids (TDS), or conductivity in water samples. It can be used to investigate the difference between ionic and molecular compounds, strong and weak acids, salinity, or ionic compounds that yield different ratio of ions. The conductivity probe can monitor concentration or conductivity at three different sensitivity settings. 6 7