What is an explanation backed by results from repeated tests or experiments?
To minimize errors and to increase precision.
Performing tests repeatedly with the same sample, same protocol, etc., ensures that your errors are as low as possible.
Suppose you have a soil sample and you want to use the modified Walkley Black test to find the (let's say) organic carbon in it. You used one gram of fine (size) sample for the test, and you report the results to your lab manager. How can you be certain that the results are accurate and precise?
Consider the following scenario: you have three samples (one gram each), and you measure the organic carbon in each of them separately. The results are all very close to one another (let's say within a 3% difference), so you can feel confident in the accuracy and dependability of your measurement.
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A Theory is an explanation backed by results from repeated tests and experiments.
A theory provides an explanation for a phenomenon. In order for a theory to gain widespread acceptance, it must be substantiated by numerous trials and experiments.
A poor theory is one that is typically rejected because it makes predictions that do not materialize.
According to a scientific theory, a massive flood that originated in Missoula, Montana and spread to Idaho, Washington, and Oregon is responsible for the granite boulders, enormous water falls, and erosion.
This theory was rejected for lack of experimental evidence, contradicting the currently accepted theories that these geological features are the result of slow uniform processes.
Tests and experiments with granite samples confirmed the flood theory; after all, when electromicroscopes were developed, the granite boulder crystals in Oregon and Washington could be studied and compared to the granite in Missoula, Montana, which the theory claimed had been sheared off by the ice dam holding back the water that caused the flood. The granite samples matched perfectly.
The Missoula flood theory is now widely accepted due to the tests and experiments that back up the explanation, which at first glance seemed illogical.
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A scientific theory.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- The theory of atomic structure has changed significantly over time. What should happen if a trusted scientific experiment yields results that contradict part of this theory?
- What is a well tested explanation that unifies a broad range of observations?
- When a scientist analyzes experimental results, what is the scientist generally doing?
- What are good techniques to use for scientific investigation? Poor techniques?
- When was salt discovered?

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