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28 Cards in this Set
- Front
- Back
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science
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the investigation and exploration of natural events and of the new information that results from those investigations
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observation
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the act of using one or more of your senses to gather information and taking note of what occurs
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inference
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a logical explanation of an observation that is drawn from prior knowledge or experience
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hypothesis
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a possilble explanation for an observation that can be tested by scientific observations
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prediction
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a statement of what will happen next in a sequence of events
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technology
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the practical use of scientiific knowledge, espectially for industrial or commercial use
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scientific theory
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an explanation of observations or events that is based on knowledge gained from many observations and investigations
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scientific law
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a rule that describes a pattern in nature
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critical thinking
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comparing what you already know with the information you are given in order to decide whether you agree with it
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description
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a spoken or written summary of observations
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explanation
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an interpretation of observations
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International System of Units (SI)
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the internationally accepted system for measurement
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significant digits
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the number of digits in a measurement that you know with a certain degree of reliability
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variable
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any factor that can have more than one value
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independent variable
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the factor that you want to test. It is changed by the investigator to observe how it affects a dependent variable
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dependent variable
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the factor you observe or measure during an experiment
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wafting
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the correct way to smell a chemical
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compass
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an instrument that shows magnetic north
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streak plate
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a piece of hard, unglazed porceain that helps identify minerals
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thermometer
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used to measure the temperature of a substance
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triple beam balance
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used to measure the mass of an object. Object is measured in grams.
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rulers/metersticks
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used to measure lengths and distances. The SI unit of measurment for length is the meter(m).
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beakers
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used to hold and pour liquids
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graduated cylinders
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used to measure the volume of a liquid. Volume is measured in liters(L) or milliliters(mL)
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binoculars
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instruments that enable people to view faraway objects more closely
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mean
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the sum of a number in a data set divided by the number of entries in the set (average)
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mode
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the number or item that appears most often
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median
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the middle number in a data set when the data is arranged in numerical order.
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