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Scientific Method
The scientific method is the basis of scientific investigation. A scientist will pose a question and formulate a hypothesis as a potential explanation or answer to the question. The hypothesis will be tested through a series of experiments. The results of the experiments will either prove or disprove the hypothesis. This category should contain questions and answers regarding the scientific method.
4,392 Questions
The name of the raw material used in a chemical reaction?
In a chemical reaction, the starting materials are called the reactants.
What is an unproven statement based on observations?
It is a conjecture, or an hypothesis in the scientific method.
An hypothesis supported by experiment can become a theory.
Something that describes a relationship that exists in the natural world is called a scientific?
mutalism
prtedation
competition
commensalism
parasitism
:D
Does scientific method have to be controlled in order to be valid?
No, the scientific method can be uncontrolled to for it to be valid.
What is the most important part of the scientific method and why?
The steps in the scientific method are: 1. The scientist asks a question. 2. The scientist develops a hypothesis (an educated guess). 3. The scientist tests the hypothesis. 4. The scientist determines whether the hypothesis is correct. 5. The scientist records the steps, so that others can repeat them to see if they obtain the same results. In my opinion, the most important step is the first. We would not be able to make any new discoveries, without someone asking a question.
Why does salt water makes cells shrink?
Because the saltwater is dehydrating it, just like it will dehydrate humans eventually.
A freshwater paramecium would shrivel in salt water due to a precess called osmosis.
Osmosis is a type of diffusion that occurs in water. If you have a container with two different salt concentrations separated by a fine screen (semipermeable barrier) that will allow water to move back and forth, but not salt, the water will try to move to the side with more salt to dilute that salt. This is what happens to your paramecium. The water inside the paramecium will move outside the paramecium to try to dilute the saltwater, causing the paramecium to shrivel like a ball that has had the air let out.
Further explanation of osmosis can be found at http://en.wikipedia.org/wiki/Osmosis
As a side note, this is why drinking salt water actually dehydrates a person. When you have salt water in your digestive track the water in your body will move into your digestive track to dilute the salt water. The water is then excreted through your urine leaving you with less water in your body then before you drank the saltwater.
What is the hypothesis for electricity?
We are long past the hypothesis stage, with regard to electricity, which is a very well understood phenomenon at this point. If you would like to know about the history of scientific investigation of electricity, there were a number of hypotheses, including the hypothesis that lightning is a form of electricity (which is true) and that nerve impulses are also a form of electricity (also true) and that electricity can be generated by some types of chemical reactions (also true) and that electricity can be used to make the Frankenstein monster come to life (not true).
Studying the effect of one thing on another in order to test a hypothesis is?
This important step in the scientific method is called experimentation.
What term best describes a variable that stays the same throughout an experiment?
The independent variable.
The independent variable is an excellent answer, for sure, but you might also consider
a constant variable, ie a variable whose value can not be changed once the experiment has begun, but can be changed in subsequent experiments.
For instance, we want to determine the rate at which an ice cube melts at various room temperatures. The latent heat of liquefaction does not change for water (ice) no matter the room temperature, but the rate at which that heat will be absorbed by the ice cube does change depending on the amount of heat available in the room (the room temperature).
So the latent heat of liquefaction is a constant, while the temperature of the room is a variable (because we can change it), but for each individual experiment the room temperature remains constant throughout, so it becomes a constant variable.
control
A scientific method goes back to?
In the history of science this approach was not originally used. The Ancient Greeks believed in doing observations and arriving at hypotheses and theories (both Greek words). They however did not believe in doing experiments.
How do geologists figure out rock-layer puzzles?
Geologist must use their knowledge of the events that disturb or remove rock-layer sequences to help piece together the history of Earth as told by the rock record.
What role does common sense play in the scientific method?
Observation is the process of gathering objective data, and inference is the process of making some decisions about what the data...
Why it is important that a hypothesis be stated so that it can be modified?
Let me start first of all by saying that hypothesis are guesses that scientists make,so they need to be tested because they are just mere guesses from one of the scientific processes of observation.so guesses need to be confirmed by testing to see how true it is,therefore since hypothesis are guesses scientists make,then it needs to be tested
Scientist used abstract reasoning to explain how something happened.
A qualitative test will reveal?
A qualitative test will reveal a person's chance of having a virus. Usually, the results only detect a small chance of a person getting sick.
What is the independent variable of an experiment?
The independent variable is how each jar is covered.
The dependent variable is the amount of maggots in each jar.
The control groups are Jar1( no covering, left open), and Jar 2 (covered with netting).
The experimental group is Jar 3 Sealed from the outside).
Scientific method controls and variables part 1?
hey does any one now the answers for the sponge bob question
Its not scientifically the right answer to the hypnosis
Write an experiment to find the velocity of sound?
Write an experiment to find the velocity of sound?
What are two scientific methods for obtaining empirical evidence?
Empirical research is a way of gaining knowledge by means of direct observation or experience. Empirical evidence (the record of one's direct observations or experiences) can be analyzed quantitatively or qualitatively. Through quantifying the evidence or making sense of it in qualitative form, a researcher can answer empirical questions, which should be clearly defined and answerable with the evidence collected. Research design varies by field and by the question being investigated.
Empirical evidence is gained by direct or indirect observation and experience.
Artificial smells are made just like any fake smell, with chemicals or some kind of extract. I hope this was useful!
