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PSS Chemistry Exam 1 Ch 1,2, Questions & Answers 2024/2025 $7.99   Add to cart

Exam (elaborations)

PSS Chemistry Exam 1 Ch 1,2, Questions & Answers 2024/2025

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  • PSS Chemistry

PSS Chemistry Exam 1 Ch 1,2, Questions & Answers 2024/2025 The four basic elements - ANSWERSAir Fire Water Earth science definition - ANSWERSthe methodical exploration of nature followed by a logical explanation of the observations Experiment - ANSWERSInvolves scientists who explore n...

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  • August 14, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • PSS Chemistry
  • PSS Chemistry
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PSS Chemistry Exam 1 Ch 1,2,
Questions & Answers 2024/2025

The four basic elements - ANSWERSAir

Fire

Water

Earth



science definition - ANSWERSthe methodical exploration of nature followed by a logical explanation of
the observations



Experiment - ANSWERSInvolves scientists who explore nature according to a planned strategy and make
observations under controlled solutions



What is Science - ANSWERSA human activity hat involves the accumulation of knowledge about the
universe around us; seeks to explain nature



5 Characteristics of Science Knowledge - ANSWERSTestable

Reproducible

Explanatory

Predictive

Tentative



Observation - ANSWERSDetectable phenomena about nature



Scientific Law - ANSWERSA broad statement summarizing a large amount of related facts



Scientific Hypothesis - ANSWERSA speculative explanation of related facts that can lead to the prediction
of future behavior

, Scientific Theory - ANSWERSA well-tested hypothesis that reaches general acceptance; best current
explanation for natural phenomena



Scientific Models - ANSWERStangible items or pictures used to represent invisible processes



Molecules - ANSWERSGroups of two or more atoms held together by chemical bonds



Molecular Models - ANSWERSMacroscopic 3-D representations of submicroscopic molecules



Principle of Simplicity (Occam's Razor) - ANSWERSUse the least complicated explanation that fits all of
the facts. Often applied in devising hypotheses



Trial and Error (Edisonian Method) - ANSWERSExample: the search or a suitable material for the light
bulb



Planned Method - ANSWERSDevise a well-defined hypothesis and test it



Accidental Discovery - ANSWERSFinding something by accident (nutrasweet/sugar)



Limitations of Science - ANSWERSScience is limited to studying that which is observable as well as
processes in which variables can be controlled



Scientific Method - ANSWERSA systematic investigation of nature and requires proposing an explanation
for the results of an experiment in the form of a general principle



Hypothesis - ANSWERSThe initial or tentative explanation of an observation; can be rejected, revised, or
elevated to the status of a scientific principle



Natural law - ANSWERSStates a measurable relationship

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