science 2

Conclusion

a judgement that you format after considering all the evidence

experiment

a test or procedure done for the purpose of learning or proving something

method

a way of doing something

Hypothesis

an idea or theory that is based on some evidence but has not yet been proven

Placebo

an inactive substance used in a controlled experiment to test the effects of an active substance

variable

any factor in an experiment that can have more than one value

what is he first step in the scientific method

asking a question

which activity is usually NOT the first step of scientific inquiry

communicsting resluts

the documentation of procedures and accidents to to eliminate false observstions or un corrects data is an

error analyis

a measurement, an observstion, or a statement that can be strictly defined is a

fact

what form do we use to write a hypotheses

if-then

a logical conclusuion based on informstion available to a scientist is an

inference

in a double blind test,the non-control receives a

new medicine

double blind

of or relation to a scientific experiment in which neither the experimenter nor the subjects know which group is the test group and which is he control group

what must occur for the hypothesis to be considered fully proven

other scientists must repeat he experiment and get the same resluts

the fake pill or medicine taken by memebers of a control group is a

placebo

galileo was an Italian scientist who helped to develop the

scientific method

why is is a placebo used in a double blind Driggs test

so that the subjects and the scientists do now know which group is the control group

a hypothesis is a

tentative explanation for an observation

control group

the group in a controlled experiment for which the idependent variable is not changed

experimental group

the group in a controlled experiment that is used to observe the effect of changing rhe idependant variable

control

to incorporate a parallel experimsnt as a standard of comparison in a scientific study

support

to provide proof or evidence for

analyze

to study carefully or in detail

which tool would a scientist use to measure mass

triple beam balance

in a controlled experiment scientists investigate a single

variable