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science 8-26

QuestionAnswer
in an experiment to determine if the popping of popcorn is affected by the tempterature at which it is stored. Counting the popped kernels is an example of ? observation
the light bulb is an example of? technology
an idea,event, or object that can e used to represent something you are trying to explain is? model
what is an explanation of an event that is based on repeated observations and experiments ? theory
what is an organized process used to gather observations and test a hypothesis called? experiment
what is a factor that does NOT change in an experiment called? constant
what is a factor that CHANGES in an experiment from manipulation of the independent variable? dependent variable
what is a standard of comparision that helps to ensure that the experimental result is caused by the condition being tested called? control
when designing an experiment the first step is to? state the problem
a testable prediction is called? hypothesis
a measurement standard that is defined when people agree with to use for comparison called? exact quanity
a beaker contains how many liters of water? 0.2
what is the volume of the beaker? 200 milliliters
what is a statement that describes what happens in nature? scientific law
what is the correct symbol for the SI unit of temperature? Kelvins (K)
on a graph, the variable that is on the horizontal axis(x axis) is called? independent variable
on a graph the variable on the vertical (y axis) is called? dependent variable
arrange the measurements in order from LARGEST to SMAllest kilometer,meter,centimeter,millimeter,micrometer
arrange the measurements in order from SMALLEST to LARGEST? micrometer,millimeter,centimeter,meter,kilometer
why can a diagram be used as a model? it can be used to represent an object, idea, or event
in a network tree concept map showing the SI base units to measure length,mass, time and temperature. which unit abbrevation would be used for temperature? K (kelvin)
what number do you add to celsius to get kelvins? 273
what is NOT a component of the experimental process? opinions
what should NOT be included in the scientific process? experimenter bias
what is the best conclusion to draw from the graph data about the depopulation of the world? increasing exponentially
what is the unit of measurement that is contained by combining other units? derived unit
what is the correct way to express density? divide mass by its volume
what is the only unit that cannot be used to express volume? kilograms
how to convert celcius to kelvin add 273 example how to convert 25 celcius to kelvin 25+273=298 K (you must put the K at the end)
what are the steps of the scientific process? 1. State the problem 2. Gather information 3. Form a hypothesis 4. Test the hypothesis 5. Analyze data 6. Draw conclusions (is the hypothesis supported or not supported)
what is the unit of measure for length? Meters (M)
what is the unit of measure for mass? kilogram (kg)
what is the unit of measure of time? second (s)
what is the unit of measure of electric current? ampere (A)
what is the unit of measure of temperature? kelvin (K)
what is the unit of measure of amount of substance? mole (mol)
what is the unit of measure of intensity of light? candela (cd)
Created by: sloancaston
 

 



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