1.) The controlled scientific experiment carried out in the Hubbard Brook Experimental Forest
2.) Science is an effort to explain how the physical world works by making observations and measurements, and carrying out experiments. It is based on the assumption that events in the physical world follow orderly cause-and-effect patterns that we can understand.
Carrying out experiments involves the scientific process. The first step in the scientific process is identifying the problem. There must be a problem worth studying in order for the scientific process to be needed. The second step is to find out what is known about the problem in order to conduct a correct and relevant experiment. The third step is to develop a question for the experiment to be based off of. The entire point of …show more content…
the experiment is to answer this question. The fourth step is to collect data (information) to answer the question. The data is based off of observations and measurements. The fifth step is to propose a hypothesis to answer the question. The hypothesis a possible explanation based off of an educated guess. The sixth step is to make testable predictions based off of the idea that the hypothesis is correct. The seventh step is to perform experiments to test the hypothesis and projections. The eighth step is to accept or reject the hypothesis based off of the new data.
Data is information needed to answer questions.
A model is an approximate representation or simulation of a system.
A scientific hypothesis is a possible explanation of what scientists observe in nature or in the results of their experiment. A scientific theory is a well-tested and widely accepted scientific hypothesis. The Scientific Law (Law of Nature) is a statement based on repeated experimental observations that describes some aspect of the universe.
Peer review involves scientists openly publishing details of the models and methods they used, the results of their experiments, and the reasoning behind their hypothesis for other scientists in their field (their peers) to evaluate. Its important because scientific knowledge advances in this way, with scientists continually questioning the measurements and data produced by their peers.
Scientific theories are not to be taken lightly because they are tested widely, supported by extensive evidence, and are accepted as being useful explanations used by most scientists. The term “theory” is often used incorrectly because they do not understand how rigorously scientific theories are tested before they become widely
accepted.
The original Easter Island hypothesis stated that the Polynesians arrived on the island 2,900 years ago, the population rose to 15,000, and they killed themselves off by using up their resources. New evidence shows that they only arrived about 800 years ago, their numbers mostly likely did not exceed 3,000, and the main cause of their dwindling numbers was European invaders.
3.) Scientific theories and laws are the most important and most certain results of science because scientific laws can not be broken no matter what. They are created after making thousands of observations and measurements.
4.) Preliminary scientific results that are not yet considered reliable are considered “tentative science” or frontier science. Reliable science consists of data, hypotheses, models, theories, and laws that are widely accepted by all or most of the scientists that are considered experts in the field under study. Scientific hypotheses and results that are presented as reliable without having undergone the rigors of widespread peer review, or that have been discarded as a result of peer review are considered to be “unreliable science”.
Probability is the chance that something will happen or be valid. Probability is used to come up with statistics that we can use to collect, organize, and interpret numerical data.
Environmental science and science in general have some important limitations that include: -Scientists can not prove or disprove anything absolutely.
- Scientists are human; therefore, they can not be completely unbiased about their research at all times.
-The scientific process is limited to understanding the physical world.