NYS Living Environment Curriculum: Scientific Inquiry and Lab Skills
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Assumption | a belief that something is true. It is made more on opinion that scientific knowledge
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| Bias | when our personal opinions affect assumptions we make
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| Conclusion | the decision you come to regarding your hypothesis after looking at all the data. Were you right or wrong and why?
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| Control | things that stay constant so that your experimental observations have something to be compared to
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| Data | observations and measurements gathered during the tests (trials) an experiment
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| Dependent variable | (goes on the Y axis) the data that changes based on other set changes that are occurring
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| Evidence | support for an idea that helps prove that it is true
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| Experiment | a test designed to proof or disprove a hypothesis
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| Hypothesis | a prediction regarding the results of an experiment. (what you think will happen)
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| Independent variable | (goes on the X axis) changes independently of any other changes occurring in an experiment
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| Chromatography | a vertical way to separate parts of a mixture; involves putting a dot of the substance on the bottom of paper and then putting the paper in a solvent (like water) so the mixture’s pieces move UP the paper. The smallest particles move farthest.
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| Dichotomous key | a series of steps including descriptions of an organism. Each step has 2 possible directions to go at the end, until you are able to identify the organism by name.
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| Gel electrophoresis | separates DNA fragments by size; used to determine who is related to who, or who committed a crime
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| Indicator | a substance that changes color when mixed with other chemicals
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| How to make a wet mount slide | put a drop water on a slide, add a small specimen, then lower a coverslip from a 90*angle.
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