Calcium (Ca) is a Pure Element of the 'Alkaline Earth Metal' group and, is a Solid under normal conditions of Temperature and Pressure.olid, liquid and gas are states or phases of an element or substance. But most substances can exist in all three states depending on temperature and pressure.
A hypothesis is. A) a tentative explanation for a set of observations that can be tested by further experimentation. B) a statement describing a relationship between phenomena that is always the same under the same conditions. C) a unifying principle that explains a body of facts and relations. D) a model used to visualize the invisible.
A hypothesis attempts to answer questions by putting forth a plausible explanation that has yet to be rigorously tested. A theory, on the other hand, has already undergone extensive testing by various scientists and is generally accepted as being an accurate explanation of an observation.