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8th Gr. Voc 1-14
Weeks 1-3
| Question | Answer |
|---|---|
| scientific method | a series of steps that a scientist follows to solve a problem or answer a question |
| independent variable | the variable the experiment is designed to test: the factor that the experimenter changes or manipulates |
| dependent variable | the factor that responds to changes in the independent variable; the factor that is measured in an experiment in response to the independent variable |
| control group | a standard set-up in which all variables are controlled and to which the experimental results are compared |
| experiment | a procedure designed to test a hypothesis |
| quantitative data | information or data that is expressed using numbers |
| qualitative data | information or data that is described in words rather than with numbers |
| hypothesis | a possible answer or tentative explanation to a scientific question |
| conclusion | a statement that explains the observations or the relationship between the variables; an explanation of what the results show |
| hydrosphere | the portion of Earth that contains water |
| cohesion | the tendency of water molecules to form weak bonds and stick together |
| adhesion | the tendency of water to stick to other substances |
| polarity | uneven distribution of charges across a molecule |
| surface tension | the force that acts on the particles at the surface of a liquid |