Question | Answer |
Assumption | a belief that something is true. It is made more on opinion that scientific knowledge |
Bias | when our personal opinions affect assumptions we make |
Conclusion | the decision you come to regarding your hypothesis after looking at all the data. Were you right or wrong and why? |
Control | things that stay constant so that your experimental observations have something to be compared to |
Data | observations and measurements gathered during the tests (trials) an experiment |
Dependent variable | (goes on the Y axis) the data that changes based on other set changes that are occurring |
Evidence | support for an idea that helps prove that it is true |
Experiment | a test designed to proof or disprove a hypothesis |
Hypothesis | a prediction regarding the results of an experiment. (what you think will happen) |
Independent variable | (goes on the X axis) changes independently of any other changes occurring in an experiment |
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. |
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. |
Gel electrophoresis | separates DNA fragments by size; used to determine who is related to who, or who committed a crime |
Indicator | a substance that changes color when mixed with other chemicals |
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. |