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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

What does initial observation mean?

For example, a guy notices that his shower is covered in a strange green slime. His friend tells him that coconut juice will get rid of it. he decides to check this out by spraying half of the shower with coconut juice and other half with water after 3 days no change on either sides of the shower.

The initial observation in that story would be that "the shower is covered in a strange green slime."

What does analysis mean in scientific method?

it mean when u are doing your project your supposes to observe what u are doing and write it down

Is the first step of a scientific experiment the hypothesis or problem?

Scientific Method

1.Problem

2.Research

3.Hypothesis

4.Expeirment

5.Analyze

6.Conclusion

So problem comes before hypothesis

What are the six steps in the USAF lockout and tagout program?

1. Notify - Notify the machinery and equipment owner/operator of the upcoming work to be performed. If there is a question about who the affected workers are, the authorized worker shall notify the machinery and equipment owner/operator. In all other cases, the authorized worker must notify affected employees.

2. Shut Down - If the machine or equipment is operating, shut it down by the normal stopping/sequential procedure (depress stop button, open toggle switch, etc.).

3. Isolate / Relieve Energy Sources - Operate the switch, valve, or other energy isolating devices so the equipment is isolated from its energy sources. Dissipate or restrain stored energy (such as that in springs, elevated machine members, rotating flywheels, hydraulic systems, and air, gas, steam, or water pressure, etc.) by methods such as repositioning, blocking, bleeding down, etc.

4. Lockout - Lockout or tagout the energy isolating devices with assigned individual locks or tags (methods selected; i.e., locks, tags, additional safety measures, etc.).

5. Verify - After ensuring that no personnel are exposed, and as a check on having disconnected the energy sources, operate the push button or other normal operating controls to make certain the equipment will not operate (types of equipment checked to ensure disconnection). CAUTION: Return operating controls to "off" or "neutral" position after the test.

6. Perform - The equipment is now locked out or tagged out and service work can be performed.

How matter and scientific method help in human?

It helps you by helping you to conduct the experiment appropriately.

Why must a scientific begin by making observations?

Generally, one makes a casual observation - apples fall from a tree - and from this one generates an hypothesis - a casual explanation for the observation.

With the hypothesis in mind, an experiment is designed to test or prove/disprove the hypothesis.

With a sufficient number of experiments under your belt, you may now form a theory, which is a much firmer type of being. It may be capable of more general application.

Is it true or false that a scientific experiment can be conducted only in a laboratory?

No. Experiments can be done anywhere. Laboratories are indeed handy as they have equipments and surroundings needed for most of the experiments, but you cannot limit experiments to the labs.

A:

The answer to this actually depends on how you define the word laboratory.

If by a laboratory, you mean 'a special room set aside to conduct scientific experiments' then the answer is no. Experiments can be conducted in the field (in other words, outside the lab or even outdoors) in what is known as field research.

However, if you define a laboratory as 'a place in which experiments are conducted' (as in, "The whole world is my laboratory") then the answer is yes. By this definition, wherever you happen to be conducting your experiment - the classroom, the beach, the International Space Station, or even inside your own head - would be considered your lab space.

The way you've phrased the question, however, makes me believe that you intended the word laboratory to have the first definition, i.e. a lab room. By that definition, the answer you're looking for is false, for the reasons outlined above.

What characteristics must a hypothesis have to be considered scientific?

To make your hypothesis considered scientific it must have testable and measurable results.

Example: If you do an experiment and the results are testable and measurable another person would be able to do the exact same project and come out with the same results.

What is this called when scientists do their test more than once?

Scientists do their test more than once, or get their colleagues and peers to do the same experiment in order to verify the results of their experiment.

This is called reproducing an experiment and its results.

What method do you use to separate iron filings from sawdust?

Use a magnet to seperate the iron. Then, add water to dissolve the salt and float the sawdust. Skim off, sieve or filter the solution to seperate the sawdust. Let the water evaporate, leaving the salt behind.

A researcher finds that her data does not support her hypothesis what conclusion can she reach?

end the experiment and throw away the datarepeat the experiment until the hypothesis is supportedchange the hypothesisargue that the results were

What is part of an experiment that is not being tested an is used for comparision?

This probably refers to the 'control'. In a very simple experiment you may add food colouring to a solution to see what colour it sent the solution. You would also have a second sample of the solution which you would not add food colouring to. This would be your control and would serve the purpose of making sure that the solution wouldn't have changed colour by itself anyway. It would also be there for comparison, so that you could compare the colours to see just how much the colour had changed.

How does the steepness of a ramp affect how fast an object moves?

The steepness of the ramp affects the direction of the normal force of the object on a ramp (which is always perpendicular to the ramp). The net gravitational force is always straight down.

Using the angle of inclination of the ramp with Trigonometry, you can find the vector forces of gravity perpendicular and parallel to the normal force which makes up the net gravitational force. The parallel portion is in the same direction of the ball rolling down the ramp. This will give you your force of acceleration, which you can use in basic equations to find the velocity of the object.

The steeper the ramp, the faster the object rolls down. A ramp of 0 degrees would result in a ball just sitting on the ramp as normal force and gravitational forces cancel each other. A ramp of 90 degrees would be like a cliff and this would produce the fastest velocity since the ball is moving in the same direction as the force of gravity in free fall. A ramp with an angle between these means that part of the gravitational force is being offset by the normal force.

How are repetition and replication alike and different?

replication- the action of copying or reproducing something.

repetition-the action of repeating something that has already been said or written.

They are basically the same,but they have a few differences. Replication is like cloning something. Repetition is just repeating something. Repetition is just repeating something. Like with chromosomes, when they reproduce they replicate themselves. If there is a repetition in the gene there is an error. Hopefully you are catching my drift. They are very similar in the fact that with both you are doing something one or more times exactly the same. Hope I helped. :)

Which recovery method usually involves an evasion effort an is dependent on the ips condition?

An unassisted recovery method usually involves an evasion effort and is dependent on the IP's condition.

Can you calculate your average speed while walking at different speeds?

For the speed of a single pedestrian, measure the time it takes him/her to walk a set distance (for example 10 meters) and divide the distance by the time. For the average speed of a pedestrian find a large number of people and measure the speed of each person and find the average by summing all the speeds and dividing by the number of people who took the test.

Is a theory or a hypothesis?

Evolution is an observed and observable fact. The theory of evolution by natural selection explains many things about evolution. The theory generates testable hypothesis, as any good theory does. Remember, theory is the highest concept in science.

What are the main steps of the scientific method in order?

1. Observing

2.Hypothesizing and Predicting.

3. Experimenting.

4.Organizing and Analyzing Data.

5. Drawing conclusions.

6. Repeating Experiments.