Science is an accumulation of knowledge about nature and our physical world and of
theories that we use to explain that knowledge.
The experimental roots of chemistry are in alchemy, a mixture of chemistry and
mag
...
Science is an accumulation of knowledge about nature and our physical world and of
theories that we use to explain that knowledge.
The experimental roots of chemistry are in alchemy, a mixture of chemistry and
magic
How to design and document an experiment
o Ask a question Do background research Construct a hypothesis test
your hypothesis by doing an experiment analyze your data and draw a
conclusion report your results (was your hypothesis correct?)
o Five steps in the scientific method
Describe and formulate a question to answer formulate a hypothesis:
A statement that predicts what you think will happen Develop an
experiment Observe and analyze the results state your conclusion.
Did you accept or reject the hypothesis? What have you learned based
on the information collected?
Characteristics or components of science
o Reproducibility, Testability, Tentativeness, Predictability, Explanatory
A variable is something that can change over the course of an experiment.
o Disagreement often results from the inability to control variables
Concepts of scientific law and theory
o Large amounts of scientific data can sometimes be summarized in brief
statements called scientific laws. Many scientific laws can be stated
mathematically and are universal. Under the specified conditions, they hold
everywhere in the observable universe.
o Scientists organize the knowledge they accumulate on a framework of detailed
explanations called theories. A theory represents the best current explanation
for a phenomenon, but it is always tentative. Theories that make successful
predictions are usuall
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