QUESTIONS AND ACCURATE SOLUTIONS
STUDY GUIDE
●● scientific method
Answer: a systematic approach to research
●● qualitative data
Answer: general observations
●● quantitative data
Answer: comprising of numbers obtained by measurement
●● hypothesis
Answer: a tentative explanation for a set of observations
●● law
Answer: a mathematical relationship that is consistently found to be true
●● theory
,Answer: a general principle or body of principles that has been
developed to explain a wide variety of phenomena (this is NOT a wild
guess)
●● two major goals of science
Answer: prediction and control
●● two "better" goals of science
Answer: understanding and explanation
●● four basic rules of good science
Answer: 1. results should be reproducible by others
2. detailed research results should be reviewable
3. conclusions should be reasonable and unbiased
4. "give credit when credit is due"
●● physics
Answer: chemistry in motion
●● biology
Answer: chemistry in a cell
●● engineering
, Answer: chemistry in application
●● matter
Answer: anything that occupies volume and has mass
●● matter is governed by...
Answer: composition and energy
●● mixture
Answer: a combination of two or more substances in which the
substances retain their distinct identities
●● homogeneous mixture
Answer: composition of the mixture is the same throughout
●● heterogeneous mixture
Answer: composition of the mixture is not uniform throughout
●● mixture separation
Answer: physical means can be used to separate a mixture into its pure
components
●● element