Tentative explanation hypothesis

How the experimental panorama is influenced by parameters still to be defined was demonstrated by Shibata et al. [86]. Here, preliminary results obtained in aqueous media using a specific brand of high-purity commercial copper cathode were positive with regards to hydrocarbons C3+, provided that no electropolishing was performed before the electrochemical process. If electropolishing preceded the C02 reduction, the cathodes behaved similarly to any other copper cathode, leading essentially (besides hydrogen) only to methane end ethylene. A tentative explanation of this behavior was proposed which referred to the polycrystalline matrix of this brand of copper, which made it particularly adaptable to be covered by oxide layers active in the formation of C3+. However, further experimental evidence on the surface structure, composition and modifications with electrolysis time will be required to substantiate this hypothesis. 

Hypothesis In a scientific investigation, a tentative explanation of observations in a laboratory or nature. Hypotheses are then tested with the scientific method to determine their validity. If a hypothesis is highly reliable at explaining and even predicting a phenomenon, it becomes a theory. 

If the question has not been answered, the scientist may prepare for an experiment by making a hypothesis. A hypothesis is a statement of a possible answer to the question. It is a tentative explanation for a set of facts and can be tested by experiments. Although hypotheses are usually based on observations, they may also be based on a sudden idea or intuition. 

A hypothesis is a tentative explanation for what has been observed. Molina and Rowland s hypothesis stated what they believed to be happening, even though there was no formal evidence at that point to support the statement. 

A hypothesis is a tentative explanation of a natural law. If a hypothesis survives by experiments, it is often referred to as a theory. We can use this terra in a broader sense, though. A theory is a model or way of looking at nature that can be used to explain and to make further predictions about natural phenomena. (Petrucci Harwood, 1993, p. 3)... 

When enough information has been gathered, a hypothesis—a tentative explanation for a set of observations—can be formulated.. . . ... 

As is often the case in freshman chemistry textbooks, there is much that is very similar from one author to another. Thus, all of the cited authors seem to agree that laws are based entirely on observations and contain no theoretical component. Zumdahl is probably the most explicit on this point. All of the cited authors who address the term also seem to agree that a hypothesis provides some tentative explanation of a set of observations, although Petrucci and Harwood, if taken at face value, would appear to be implying that one has to wait until there is some law on the books before one can begin to hypothesize. 

When the experiments have been completed and the data have been recorded, the next step in the scientific method is interpretation, meaning that the scientist attempts to explain the observed phenomenon. Based on the data that were gathered, the researcher formulates a hypothesis, a tentative explanation for a set of observations. Further experiments are devised to test the validity of the hypothesis in as many ways as possible, and the process begins anew. Figure 1.3 summarizes the main steps of the research process. 

The scientific method is a dynamic process used to answer questions about our physical world. Observations and experiments lead to scientific laws, general rules that summarize how nature behaves. Observations also lead to tentative explanations or hypotheses. As a hypothesis is tested and refined, a theory may be developed that can predict the results of future observations and experiments. 

Confusion sometimes arises regarding the exact meanings of the words hypothesis, theory, and law. A hypothesis is a tentative explanation of certain facts that provides a basis for further experimentation. A well-established hypothesis is often called a theory or model. Thus a theory is an explanation of the general principles of certain phenomena with considerable evidence or facts to support it. Hy-... 

Hypothesis A tentative explanation for an observed condition or event. 

As we perform our experiments, we may begin to see patterns that lead us to a tentative explanation, or hypothesis, that guides us in planning further experiments. Eventually, we may be able to tie together a great number of observations in a single statement or equation called a scientific law. A scientific law is a concise verbal statement or a mathematical equation that summarizes a broad variety of observations and experiences. We tend to think of the laws of nature as the basic rules under which nature operates. However, it is not so much that matter obeys the laws of nature, but rather that the laws of nature describe the behavior of matter. 

For the science of allelopathy, like all other sciences, there is a prescribed methodology by which problems are to be addressed and solved, the Scientific Method . Once a problem has been identified, this method requires that alternative hypotheses, tentative explanations, be generated which can be experimenttilly tested. Occurrence (acceptance) or non-occurrence (rejection) of predictions deduced for each hypothesis is then determined by means of experiments. Finally, science progresses not by trying to confirm hypotheses but by attempting to falsify them since it is usually possible to find at least some confirmatory evidence for any hypothesis, but one solid piece of negative data refutes a hypothesis completely (Blum 2007 Quotation used with permission of Science Publishers). 

Stating hypotheses (tentative explanations to causal questions) constitutes, in general, a complex process of combining empirical evidence, previous knowledge, and intuition (Lawson, 1995). The role of argument in this process seems to be crucial. Partial scientific claims towards an explanatory framework do need to be well grounded in warranting structures that are built on reliable epistemic criteria (Driver et al., 2000). Furthermore, the possible formulation of more than one alternative hypothesis for the same causal question, activates a process of comparative evaluation of their explanatory efficacy to decide which one is the... 

How could you explain this observation Why is the MRT protein not produced in the bacteria by the cloned MRT gene Can you give a tentative explanation for this In oflier words, can you formulate a so-called hypothesis ... 

Proposing a hypothesis. A hypothesis is a tentative explanation for observations. For example Wood—and everything else—contains phlogiston. When something burns, it loses phlogiston. 

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