She could time how long it takes for each amount of salt dissolves in the waters. (as well as keep each amount of salt the same if she was not doing that already.)
Explanation:
This way, she could observe which water is best for dissolving solvents and which is most affective in the shortest amount of time. If she was not timing how long it takes for salt to dissolve in different temperatures of water, then the experiment may as well have been useless unless there is somehow a different objective.
If the amount of daylight increases plant growth, then plants will have higher rates of growth during the summer. hypothesis.
The outer layer of the Earth is divided into plates that move due to convection currents under the surface. theory
For every action or force in nature, there is an equal and opposite reaction. law
A hypothesis is a scientific conjecture, not verified that requires corroboration. It is a possibility, but not a fact. A hypothesis must express what is expected to occur in a perfectly comprehensive manner. There must be a logical relation between variables. It must be objective. The researcher suggests a hypothesis in order to predict what is going to happen. There are different kinds of hypotheses: descriptive, correlative, differentiative, or causative.
A law is an affirmation based on repeated experimental observations, it is not that might describe one aspect of a natural phenomenon. This means that it is corroborated by facts, and not only by logic. There is a relation cause-effect.
The scientific theory is a conceptual framework used to explain facts or phenomena and to make predictions. The theory is fundamental to science because it allows scientists to organize and understand observations. The construction of a theory begins with a hypothesis. The scientist believes that a certain phenomenon occurs in a certain way and so he/she performs observations under the scientific method to prove that his/her hypothesis is valid or not valid. The systematization of the observations as well as of the empirical data collected might derive in a scientific theory that can explain the analyzed phenomenon. A scientific theory is a knowledge that was contrasted in several ways.
medical waste is most often collected in biohazard bags or containers and incinerated. The heat kills bacteria and other pathogens that would re-infect surfaces, and workers.
