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Ch. 1 Nature-2012
Nature of Science, Scientific Method, Metrics
| Question | Answer |
|---|---|
| bar graph | used to compare numbers/ amounts |
| circle/pie graph | used to compare percentages |
| constant | factor that does not change in an experiment |
| control | part of the experiment used to compare the results of the experiment against |
| controlled experiment | an experiment that tests only one factor at a time by using a comparison of a control group with an experimental group |
| degree Celcius | unit of measure on the Celcius temperature scale |
| density | the mass per unit volume of a material |
| dependent variable | variable that depends on what happened in the experiment |
| experiment | an investigation that test a hypothesis by collecting information under controlled conditions. |
| gram | measures mass with a triple beam balance, a unit of mass in the metric system |
| graphs | used to organized data, sometimes helps make errors more noticeable |
| hypothesis | is an explanation for a question or a problem that can be tested. It is based on prior scientific research. (educated guess) |
| increment | amount that one space on an axis represents |
| independent variable | variable that is controlled and changed by the researcher |
| length | distance from one point to another |
| line graph | a graph used to find relationships between variables |
| liter | measures volume with a graduated cylinder, basic unit of volume in the metric system |
| manipulated variable | the factor that causes the change in the other variable (also called independent variable). |
| mass | the amount of matter in an object |
| measurement | information from the five senses compared to a scale |
| meter | the basic SI unit of length and is measured with a metric ruler or meter stick. |
| model | anything that represents an idea, event, or object to improve understanding |
| newton | measures weight with a spring scale, the SI unit for force (symbol, N) |
| observation | information from the 5 senses |
| origin | the point where the x and y axes cross, the beginning of the graph |
| responding variable | changes in response to the manipulated variable (also called dependent variable) |
| scientific law | describes an observed pattern in nature, recurring facts or events in nature provided by a theory |
| scientific method | a set of steps used in an investigation |
| scientific theory | a well tested explanation for a set of observations |
| SI | the international system of units |
| slope | the amount of "tilt" on the line of a graph |
| spring scale | Used to measure the force of gravity (weight) exerted on an object and measures that force in newtons (N) |
| temperature | the average kinetic energy of the molecules |
| thermometer | a tool used to measure temperature |
| triple beam balance | An instrument that uses a set of three sliding riders to balance an unknown weight on the pan and measures mass in grams. |
| variable | A factor that can change in an experiment |
| volume | the amount of space an object takes up |
| weight | the measure of the pull of gravity on an object |
| x axis | horizontal axis of the raph, manipulated and independant variable (cause) |
| y axis | vertical axis of a graph, responding and dependant variable (effect) |
| data | pieces of information acquired through the experiment |
Created by:
tcole8
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