“A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experimentation. Such fact-supported theories are not “guesses” but reliable accounts of the real world.
What is a theory in chemistry quizlet?
in a chemical reaction, matter is neither created nor destroyed. what is the definition of a scientific theory? a model that explains underlying reasons for observations and laws.
What is an example of theory in chemistry?
Chemistry: the kinetic theory of gases, valence bond theory, Lewis theory, molecular orbital theory.
Which of the following best describes a scientific theory?
Which of the following best defines a scientific theory? An ‘if, then’ statement that can be tested by science.
Is chemistry real or a theory?
Even though chemistry is more like an applied science and often relies on models rather than on pure theories, one can envision fundamental theories that would fall under Popper’s narrow definition that can only or principally be falsified by organic chemists.
What is theory in simple words?
A theory is a group of linked ideas intended to explain something. … They can be tested to provide support for, or challenge, the theory. The word ‘theory’ has several meanings: a guess or speculation. a law about things which cannot be seen directly, such as electrons or evolution.
What is the definition of a scientific theory quizlet?
Scientific Theory. A well-tested explanation that unifies a broad range of observations and hypotheses and that enables scientists to make accurate predictions about new situations.
What is a good definition of chemistry quizlet?
A good definition of chemistry is: the science that seeks to understand the interactions of molecules for the sake of advancing human control over nature.
What is the difference between a scientific law and theory?
Like theories, scientific laws describe phenomena that the scientific community has found to be provably true. Generally, laws describe what will happen in a given situation as demonstrable by a mathematical equation, whereas theories describe how the phenomenon happens.
Is a theory a fact?
A theory never becomes a fact. It is an explanation of one or more facts. A well-supported evidence-based theory becomes acceptable until disproved. It never evolves to a fact, and that’s a fact.
What are the 3 types of theory?
Although there are many different approaches to learning, there are three basic types of learning theory: behaviorist, cognitive constructivist, and social constructivist.
What are the types of theories?
Sociologists (Zetterberg, 1965) refer to at least four types of theory: theory as classical literature in sociology, theory as sociological criticism, taxonomic theory, and scientific theory.
What is true theory?
A theory not only explains known facts; it also allows scientists to make predictions of what they should observe if a theory is true. Scientific theories are testable. New evidence should be compatible with a theory. If it isn’t, the theory is refined or rejected.
What makes a theory a theory?
A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not “guesses” but reliable accounts of the real world.
What is a scientific theory based on?
A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not “guesses” but reliable accounts of the real world.
What is the full meaning of chemistry?
Definition of chemistry 1 : a science that deals with the composition, structure, and properties of substances and with the transformations that they undergo. 2a : the composition and chemical properties of a substance the chemistry of iron. b : chemical processes and phenomena (as of an organism) blood chemistry.
Where does the word chemistry come from?
Assuming a Greek origin, chemistry is defined as follows: Chemistry, from the Greek word χημεία (khēmeia) meaning “cast together” or “pour together”, is the science of matter at the atomic to molecular scale, dealing primarily with collections of atoms, such as molecules, crystals, and metals.
What are the types of chemistry?
Traditionally, chemistry has been broken into five main subdisciplines: Organic, Analytical, Physical, Inorganic and Biochemistry.
What is a theory in biology?
In biology, a theory is a widely accepted explanation of a biological phenomenon based on sound evidence from rigorous empirical experiments and scientific observations. An example of a popular biological theory is Charles Darwin’s Theory of Evolution by Natural Selection.
What are theories used for?
Theories are formulated to explain, predict, and understand phenomena and, in many cases, to challenge and extend existing knowledge within the limits of critical bounding assumptions. The theoretical framework is the structure that can hold or support a theory of a research study.
What’s the difference between a theory and an opinion?
Sometimes it is possible to restate an opinion so that it can become a hypothesis. A scientific theory is a hypothesis that has been extensively tested, evaluated by the scientific community, and is strongly supported.
Who discovered atomic theory?
The modern atomic theory, which has undergone continuous refinement, began to flourish at the beginning of the 19th century with the work of the English chemist John Dalton.
Can a theory be proven wrong quizlet?
A theory is always true and can never be proven as wrong. Theories can be tested and validated through experimentation. If experimental results contradict a hypothesis, the hypothesis must be either revised or discarded.
Is a theory proven?
A scientific theory is not the end result of the scientific method; theories can be proven or rejected, just like hypotheses. And theories are continually improved or modified as more information is gathered, so that the accuracy of the prediction becomes greater over time.
Is a theory a hypothesis?
A hypothesis is an assumption made before any research has been done. It is formed so that it can be tested to see if it might be true. A theory is a principle formed to explain the things already shown in data.