34 terms

PreCollege Vocab: Scientific Method

Science Vocabulary Word to study for the ACT
STUDY
PLAY
analyze
(To find the murderer we must first analyze the DNA.)
(v) to study the relationship of the parts of something
分析
application
(Using the application of heat we can melt gold into its liquid state.)
(n) ability to put to a practical use, having something to do with the matter at hand
应用
assumption
(Some scientists make the assumption that life exists on other planets.)
(n) something that is believed to be true or probably true but that is not known to be true
假设
constant
(To determine the melting point of various substances you must keep their mass constant.)
(n) remaining steady and unchanged
常量
variable
(When determining the melting point of a substance, heat should be your only variable.)
(n) the component of an experiment that is being tested
变量
correlation
(There is a correlation between how healthy the food you eat and how long you live.)
(n) a close connection between two ideas or two sets of data
相关
evaluate
(The graduate students volunteered to evaluate the water quality in the local streams.)
(v) determining the worth or correctness of something
求...的值;评价;评估
evidence
(The robots on Mars are looking for evidence of life.)
(n) that which serves to prove or disprove something
证据
examine
(In order for the robots on Mars to look for evidence of life they must examine the soil for bacteria.)
(v) to look at or check carefully
检查
experiment
(To determine the effectiveness of a drug we must experiment on human tissues and cells.)
(n) a process made to find something out
实验
generalization
(The idea that all plants photosynthesize is a generalization.)
(n) something given as a broad statement or conclusion
总结;概括
hypothesis
(I am going to run an experiment to see how bad air can affect a human body. My hypothesis is that bad air hurts the lungs.)
(n) testable (but not yet tested) explanation of a question or problem
假设
indicator
(A bad cough is an indicator that you may be sick.)
(n) any device that measures, records, or visibly points out something
指标
investigate
(Scientists are now investigating the possibility of life on Mars.)
(v) to study by close and careful observation
调查;研究
mechanism
(Photosynthesis is the mechanism by which plants create their own food.)
(n) the parts or steps that make up a process or activity
机制;原理
observation
(When I burn a match I feel heat, smell smoke, and see light...these are all observations.)
(n) the act of noting and recording facts and events
观察报告;观察
pattern
(An ecological pattern is that when predators are killed in an environment, prey populations increase.)
(n) a predictable sequence of events
样式;图案
phenomenon
(If the light is right after it rains you may experience a rainbow, one of nature's most beautiful phenomenons.)
(n) an observable fact or event
现象
precision
(Expensive machines help doctors determine your exact weight with precision.)
(n) the quality of being exactly stated, exact arrangement
精度
predict
(I predict that in the next 30 years humans will arrive on Mars.)
(v) to figure out and tell beforehand
预测
procedure
(The procedure to understand the bird's migration begins with measuring the wings.)
(n) the way in which an action or actions is carried out
过程
replicate
(In order to be believed all experiments must be able to be replicated.)
(v) to copy or reproduce
复制
theory
(Evolution theory explains why humans have different color skin.)
(n) a general rule offered to explain experiences or facts
原理;理论
validity
(An experiment's validity is proven when other scientists can conduct the same experiment and get the same results.)
(n) based on evidence that can be supported
正确性
accuracy
( An experiment's accuracy is improved by measuring everything multiple times.)
(n) the closeness of an experimental measurement to the accepted or theoretical value
精确度;正确性
analysis
(After much analysis of the facts, the scientists determined they had to redo their experiments with a new chemical.)
(n) a stage in the scientific method where patterns of observations are determined
分析
calibrate
(Before weighing anything, the scale should be calibrated to make sure it is set at zero.)
(v) to adjust a piece of equipment so that its measurement is the most exact measurement possible
校正;调整
component
(A vital component of any automobile is the engine.)
(n) an important piece of something
组件;成分
confirm
(Thousands of experiments have confirmed that lightening is made of electricity.)
(v) to make sure of the truth of something
证实
demonstrate
(Boiling water can demonstrate the concept of vaporization.)
(v) to explain by use of examples or experiments
证明;论证
ethics
(Ethics tell us that we should not clone a human.)
(n) a set of rules governed by culture
伦理;道德规范
inconsistent
(An experiment is not valid if the results are inconsistant.)
(adj) not in agreement
不一致的
modify
(If an experiment does not work you may have to modify it.)
(v) to make changes in something
修改;更改
law
(The law of gravity explains why we do not fly off into space.)
(n) a more specific rule offered to explain experiences or facts
法律;法治
YOU MIGHT ALSO LIKE...

Flickr Creative Commons Images

Some images used in this set are licensed under the Creative Commons through Flickr.com.
Click to see the original works with their full license.