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Scientific Methods - ANSWER ✔✔a series of steps followed to solve
problems
The Steps of the Scientific Methods - ANSWER ✔✔1) What's the
Question?
2) Collect information or observation.
3) Form hypothesis
4) Design experiment
5) collect data and analyze results
6)final conclusion/results
,Reliability - ANSWER ✔✔repeatability of findings. An experiment
should have the ability to be repeated with the same results.
Validity - ANSWER ✔✔credibility or believability of the
research/experiment.
Controlled experiment - ANSWER ✔✔controlled experiment
compares an experimental or test group and a control group. Within
controlled experiments, the emphasis is to only have one variable.
Sub groups include control and experimental groups
Control Group - ANSWER ✔✔a control group provides a normal
standard against which a scientist can compare results with the
experimental group.
Experimental Group - ANSWER ✔✔experimental group is identical to
the control group except for one variable, the manipulated or
independent variable.
all variables that may affect the outcome of the experiment should be the
same in both control and experimental groups.
Independent Variables - ANSWER ✔✔is the variable that is changed
or controlled in an experiment to test the effects on the dependent
variable.
,Measurement - ANSWER ✔✔the process of determining dimensions
or the quantity of something by comparing it to a measurement unit.
Ladder Method - ANSWER ✔✔1st - Determine your starting point.
2nd - Count the "jumps" to your ending point.
3rd - Move the decimal the same number of jumps in the same direction.
To convert to a smaller unit: move the decimal point to the right or
multiply
To convert to a larger unit, move decimal point to the left or divide.
kilo - ANSWER ✔✔Thousands (1,000)
example: kilometer, kilogram, kiloliter
Hecto- - ANSWER ✔✔hundred (100)
example: hectometer, hectogram, hectoliter
deka- - ANSWER ✔✔ten (10)
example: dekameter, dekagram, dekaliter
base unit - ANSWER ✔✔ones (1)
meter, gram, liter
deci- - ANSWER ✔✔tenths (0.1)
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, decimeter,decigram, deciliter
centi- - ANSWER ✔✔hundredths (0.01)
centimeter, centigram, centiliter
milli- - ANSWER ✔✔thousandths (0.001)
millimeter, miligram, milliliter
Scientific Model - ANSWER ✔✔a representation of an object or event
that can be studied to understand the real object or event
Scientific Theory - ANSWER ✔✔summarizes a hypothesis or group
of hypotheses that have been supported with repeated testing. Generally
accepted to be true and is evidence based but can be change with new
evidence to dispute it.
Scientific Law - ANSWER ✔✔generalizes a body of observation. the
law helps explain things but they do not describe them.
The nature of scientific knowledge - ANSWER ✔✔subject to change
based on new evidence and data analysis, consistent with evidence and
not randomly formed, based on reproducible evidence, not just a one
time occurrence.
characteristics of gases - ANSWER ✔✔Expand to fill their containers.