it needs to be a interesting unique one that is also simple.thanks so much!|||Seed germination in light and dark( long thin white) is too simple? If not try lettuce seeds, they germinate easily.
Maybe cover germinating seeds with different foils or different coloured glasses?? Non unique I`m afraid.
How many seconds must one microwave bread to prevent mould? ( wet, closed container)
I will think further|||A scientific control augments integrity in experiments by isolating variables as dictated by the scientific method in order to make a conclusion about such variables. In a controlled experiment, two virtually identical experiments are conducted. In one of them, the treatment, the factor being tested is applied. In the other, the control, the factor being tested is not applied. Effects of the treatment are isolated by comparing outcomes in the two cases.
For example, in testing a drug, it is important to carefully verify that the supposed effects of the drug are produced only by the drug itself. Doctors achieve this with a double-blind study in a clinical trial: two (statistically) identical groups of patients are compared, one of which receives the drug and one of which receives a placebo. Neither the patients nor the doctor know which group receives the real drug, which serves both to curb researchers' bias and to isolate the effects of the drug.
Types of control group:
Negative control
A control sample where a negative result is expected, to help correlate a positive result with the variable being tested. Example: a measurement of background radiation when trying to test the effects of a certain substance on local radiation levels.
Positive control
A control sample that is known to produce a positive result if the test is working as expected. Example: printing a test page on a printer with its own driver software to test that it has been installed correctly, before testing the printing behaviour of another piece of software.
In the scientific method, an experiment is a set of observations performed in the context of solving a particular problem or question, to support or falsify a hypothesis or research concerning phenomena. The experiment is a cornerstone in the empirical approach to acquiring deeper knowledge about the physical world.
A control group study uses a control group to compare to an experimental group in a test of a causal hypothesis. The control and experimental groups must be identical in all relevant ways except for the introduction of a suspected causal agent into the experimental group. If the suspected causal agent is actually a causal factor of some event, then logic dictates that that event should manifest itself more significantly in the experimental than in the control group. For example, if 'C' causes 'E', when we introduce 'C' into the experimental group but not into the control group, we should find 'E' occurring in the experimental group at a significantly greater rate than in the control group. Significance is measured by relation to chance: if an event is not likely due to chance, then its occurrence is significant.
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