Test 1 2016 Flashcards
(17 cards)
anything that takes up space and has mass
matter
the amount of matter in an object, does not change anywhere in universe
mass
the pull of gravity, changes on smaller/bigger planets
weight
study of matter, and the changes it undergoes
chemistry
the act of gathering information using five senses
observation
a conclusion reached from evidence and reasoning
inference
a testable statement that is based on what has been observed, an educated guess
hypothesis
Identify the IV and DV: How does stress affect blood pressure?
IV = stress DV = blood pressure
steps in scientific method
Make observations Ask a question Form a hypothesis Conduct experiment, test hypothesis Record data Reach conclusion
act of gaining knowledge for the sake of knowing itself
pure research
research done to figure out a specific problem
applied research
information used based on color, odor, smell, size, shape
Qualitative data
information used to tell how much or how little
quantitative data
the weighted average mass of the isotopes of that element (usually a decimal)
atomic mass
units of atomic mass
amu or Daltons
atoms of the same element with same number of protons with different numbers of neutrons
isotopes
the number of protons PLUS the number of neutrons (whole number)
mass number
