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Labs & Nature of Sci
Science & Lab Skills Living Envrionment Regents Review
| Question | Answer |
|---|---|
| Assumption | Something accepted to be true but subject to change |
| Bias | A tendency to favor something: Prejudice |
| Conculsion | A decision made about an outcome of an experiment |
| Control | a group in an experiment that does not recieve experimental conditions. EX; Your testing how light effects plant growh, a plant in normal light conditons is the control. A plant that gets no light is the experimental group |
| Contolled Experiment | An experiment which all variables - except for the ones being tested - are kept the same. |
| Data | results of a test that was completed during an experiment |
| Dependent Varible | the explerimental variable that is being measured. example: your doing an experiment measuring how light effects plant growth. The dependent variable in this case is how much the plant grows |
| Evidence | support for the idea that something is true |
| Experiment | A series of trials or tests that are done to support or refute a hypothesis |
| Hypothesis | a statement that predicts the outcome of an experiment |
| Independent varible | the experimental variable that is being changeed. Example: ex: your doing an experiment measuring how light effects plant growth. The independent variable in this case is how much light the plant gets |
| Inference | a conclusion based on observations |
| Model | a represention used to explain a process or structure |
| Observation | any information that is collected with your senses |
| Opinion | an idea that someone has that may or may not be based in fact |
| Peer review | a process where scientists examine, the data and experimental design of each others work. |
| Reserch Plan | Part of research process that involves finding backround information and designing an exeriment |
| Scientific Literacy | a basic knowledge of the natural world and an understanding of how scientists gain knowledge |
| Balance (the measurement tool) | A tool that measures mass |
| Chromotography | A lab technique used to seperate pigments by their color |
| Light microscope | A lab tool that is used to view tiny things |
| Dichotomous Key | a guide that compares pairs of observable traits to help the user identify an orgnaism |
| Dissection | The act of cutting apart a dead organism to examine its internal structure |
| Electronic Balance | a tool to measure mass |
| Electrophoresis | A lab test that allows scientists to compare DNA of differnent individuals. the more bands in common the more closly related you are |
| Graduated Cylinder | A tool for measuring the volume of a liquid |
| Indicator | A chemical that changes colors when a specific substance is present. Starch indicator turns from amber to purple/black when starch is present glucose indicator turns from blue to orange when glucose is present |
| Magnification | The ability for a microscope to make an object appear larger |
| Mass | A measure of how much stuff is inside an object |
| Metric ruler | a tool for measuring distance |
| Microscope | a tool for used to magnify an object |
| Stain | a chemical used to to make cell structrues more visible |
| Sterosioscope | a microscope with two eye pieces used for dissections |
| Triple - Beam Balace | a tool for measuring mass |
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