Flashcards
Unit 1 Flashcards
Cards in this deck (24)
- 1Constant-something that doesn't change
-continues or remains steady - 2Control-an experiment that isolates the effect on one variable
-hold constant all variables but the one under observation - 3Independent Variable-variable you have control over (manipulate, change)
-x axis
-experimenter controls IV - 4Dependent Variable-changing IV causes change in DV
-measurable by experimenter
-best fit line shows relationship between IV and DV (goes on Y axis) - 5Controlled Experiment-an experiment designed to minimize the effects of variables other than the single independent variable
- 6Hypothesis-"educated guess"
-based on prior knowledge and observation - 7Law-a statement based on repeated observation that describes a pattern
-How? - 8Best-fit line, curve-shows wether these two variables appear to be correlated
- 9Derived Unit-Any unit that is a combination of two or more based units
-EX: speed (meters/second) or density (grams/milliliter) - 10Safety Rules1. Always know what you're doing before acting
2. Safety gear is not optional
3. Be careful but if an accident happens notify a teacher immediately - 11Observation-An act or instance of noticing or perceiving
-Habit of observing - 12Seconds-standard unit of time
- 13Density (g/mL)-Density=Mass/Volume
- 14Kilograms-Mass
-10(3) - 15Variables-An item, factor or condition that can be controlled or changed
- 16Theory-A statement that explains why a law appears to be true
-Why?
-Explains scientific facts - 17Inference-Act or process of deriving logical conclusions that are assumed to be true
- 18Line-graph-Illustrate the relationship between the IV and DV in an experiment
- 19Meter-Length
-Base unit
-10 (0) - 20Volume-The amount of space occupied by an object
- 21Mass-in kilograms
- 22Precision-How precisely you can make your measurements
-Smaller unit you use=more precise - 23Liter-Basic unit of liquid volume
- 24Accuracy-Tells you how close your measurements of the variable are to the true value
-"real value"
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- 8th Grade School (Chapter 1: Intro to Science) Flashcards on Unit 1 Flashcards, created by mottenbreit on 07/01/2015.
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- mottenbreit
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