Intro to Science:Exam Review
Terms
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- Goal of Science?
- to understand the world and universe around us
- Theory?
- most logical explanation for events occuring in nature
- Law?
- once a theory has passed many tests and is generally accepted by the scientific community, it is a law
- Geology?
- study of rocks and minerals as well as the origin, history, and structure of earth
- Meteorology?
- study of weather, climate, and phenomena in the atmosphere
- Oceanography?
- study of oceans including their physical features and life forms
- Astronomy?
- study of characteristics of objects in space (planets, stars, galaxies, black holes, supernovas, nebulae, etc.)
- Supernova?
- exploding stars
- Nebulae?
- clouds of gas where stars are born
- Astrology?
- NOT a science, practice of trying to predict the future by looking at constellations and planetary alignments
- Astro-
- of a star
- geo-
- earth
- meteor-
- pertaining to air or atmosphere
- milli-
- thousandth
- centi-
- hundredth
- kilo-
- thousand
- -graphy
- description of
- -logy
- science of
- -nomy
- systemized knowledge of
- Scientific Method?
- way to solve problems in all branches of science. it is usually but not always followed in a specific number of steps
- Step 1 of SM
- Purpose, problem, or question for running experiment
- Step 2
- Research background information on topic
- Step 3
- Hypothesis- make prediction of what might occur during the experiment
- Step 4
- Experiment- conduct a fair test
- **Fair test
- an experiment that tests only one variable at a time
- Step 5
- Analysis- record data, make graphs or other visual aides
- Step 6
- Conclusion- summarize your experiment, state results, was hypothesis wrong/right? why?
- *Re-experiment
- run the experiment several times to see if you get the same results
- **Error Analysis
- aka Possible Errors- list any potential errors that could have occured during the experiments
- Length
- Measured in kilometers, meters, centimeters, & millimeters
- light year
- used to measure objects outside our solar system
- micrometer
- millionth of a meter
- nanometer
- billionth of a meter
- angstrom
- ten-billionth of a meter
- volume
- amount of space an object takes up
- mass
- amount of matter in an object
- weight
- measure of attraction between 2 objects due to gravity
- Mass remains constant while what changes?
- weight
- C=
- (F-32) x 0.5555
- F=
- (Cx1.8) + 32
- Dimensional Analysis
- method for converting one unit to another
- Conversion factor
- fraction that always equals 1
- Spectrums of invisible light are?
- UV rays, X rays