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In science what is an idea or explanation that is based on observations and that can be tested?
Theory A scientific theory is a well tested explanation for a wide range of observations or experimental results
What is the difference between scientific fact and scientific theory?
Not much:scientific hypothesis, a reasonable guess about how things work but without confirming experimental evidencescientific theory, a reasonable guess about how things work that has significant confirming experimental evidence and has been replicated in multiple experiments by different researchersscientific fact, a reasonable guess about how things work that has significant confirming experimental evidence and has been replicated in many experiments by different researchersNote: nothing in science can be "proven true", only confirmed within a certain probability of being true. No matter how many experiments have been done that confirm an idea, there is always a possibility that a future experiment will reveal a previously unknown defect in that idea. Ideas in science are usually declared "facts" when the evidence has become so overwhelming that few (if any) scientists continue to debate the idea.
How do scientist usually design experiments?
with a good idea of the expected experimental results.
What is the idea that knowledge is acquired only through direct observation?
Empiricism
What was the importance of Rutherford's experimental results and predictions being the same?
it proved that his idea was potentially right
What is a term for a scientific idea with great deal of experimental evidence?
Observation
Who did not have experimental evidence to support his of the atom?
Democritus did not have experimental evidence to support his idea of the atom. Instead, his idea was based on philosophical reasoning and speculation.
Who did not have experimental evidence to support there theory of a atom?
Ancient Greek philosophers such as Democritus and Leucippus did not have experimental evidence to support their theory of the atom. Their idea of the atom was purely philosophical and lacked experimental verification until much later.
What kind of proof is required when disproving old ideas?
experimental evidence that supports the new idea
How did the development of the earliest idea about atoms differ from the later work of scientists?
The earliest idea about atoms, proposed by ancient Greek philosophers like Democritus, was based on philosophical reasoning and did not involve empirical evidence. In contrast, later scientists like Dalton and Thomson developed atomic theory based on experimental observations, such as the laws of chemical reactions and the discovery of subatomic particles. This shift from abstract philosophy to empirical observation marked a significant change in the approach to understanding atoms.
How is the word 'faith' defined?
Faith is the strongest kind of belief in that it implies absolute certainty about the truth concerning a person or idea. But it is unlike true knowledge in that it is not based on empirical evidence, personal experience, or observation.
Who didn't have experimental evidence to support his theory of atoms?
The Greek philosopher Democritus first put forward the idea of atoms as an intellectual theory.
When evolution was first proposed what was used as evidence to support this idea?
Fossil records, anatomical similarities among different species, and the observation of natural selection in action were some of the key pieces of evidence used to support the idea of evolution when it was first proposed.
How is a fact defined?
A fact is an idea that is proven to be true, usually based on empirical evidence.
What pair of ideas were central to the scientific revolution?
The pair of ideas central to the scientific revolution were empiricism, the idea that knowledge should be based on observation and experience, and skepticism, the questioning of accepted beliefs and ideas in order to seek truth through logical reasoning and evidence.
Why has our idea of what the atom looks like changed so many times?
Our idea of the atom has changed over time as new experimental evidence and theoretical advances have been made. Early models were based on limited information and as technology improved, we discovered more about the structure of the atom. Each new model built upon the shortcomings of the previous one, leading to our current understanding based on quantum mechanics.
Which theory about the universes size best matches the experimental evidence found by astronomers and physicists?
The theory of an expanding universe, known as the Big Bang theory, best matches the experimental evidence found by astronomers and physicists. Evidence such as the cosmic microwave background radiation and the redshift of distant galaxies support the idea that the universe began as a singularity and has been expanding ever since.
