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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 is the difference between scientific method and scientific attitude?

Scientific method refers to the particular process of solving problems--based on observation, empiricity and attribute of repetitiveness. Scientific attitute refers to willingness or temperament to follow/adopt this process for solving problems.

How much voltage does it take to power a clock?

My big kitchen clock runs on a single AAA cell. That's 1.5 volts.

My son has a solar-powered watch. The solar cell is a lot less than 1.5 volts.

I used to have a clock in my office that ran on the voltage between two needles stuck into a potato.

I had to get rid of it after a long weekend when the clock was stopped and the office was full of fruit flies.

But the potato was not a tremendous voltage source.

I don't know what's the smallest voltage that a clock has ever run on, but it's obviously a lot less

than one volt.

What type of reasoning was used in the development of evolutionary theory?

A Theory is a hypothesis that has withstood testing, but cannot be proven infallibly true, meaning that the only way to form a theory is through scientific testing. Reasoning is necessary to form a hypothesis, which will be considered a theory once tested and supported by the results. Two types of reasoning are Inductive Reasoning and Deductive Reasoning.

Inductive ReasoningMaking observations and extrapolating to come to a conclusion beyond the scope of current information.

i.e.

The grass outside is green

therefore

All grass is green

Deductive ReasoningUsing logic to reach a conclusion, specifically when the conclusion necessarily follows the premise(s).

i.e.

This mouse is gray

and

All gray mice are fast

therefore

This mouse is fast

Once you have a hypothesis, it can be tested using the Scientific Method.

Scientific Method
  • Ask a question
  • Do background research
  • Construct a hypothesis
  • Test your hypothesis using an experiment
  • Analyze data and draw a conclusion
  • Communicate your results

If the results of the experiment support the hypothesis, then it is considered true. If others are able to duplicate the experiment and achieve the same results, the hypothesis will be considered a theory.

inductive

Is a manipulative variable the same as an independent variable?

Yup, a manipulative variable is the variable a scientist deliberately changes. This is also called an independent variable.

Why do engineers use the scientific method?

The scientific method is beneficial for a variety of reasons. Some of these are:

  • The steps are clear, so the experiment can always be repeated
  • Experiments are controlled
  • Allows the results and work to speak for itself
  • Has a clear objective and minimizes bias

In the scientific method how do you test a hypothesis?

1. Ask a question

2. Make a prediction

3. Plan and conduct an experiment

4. Communicate their results

Take this make-believe scenario: I am investigating the properties of water, and I need to know all I can about how water, ice and heat interact. I know that when water gets cold enough, it freezes, and that when ice is exposed to heat, it melts. I might come up with a hypothesis-- a first attempt to understand what is happening with water and ice. I hypothesize: Since water is the liquid state of H2O, and liquids are warmer than their solid forms, water must be warmer than ice. It must be that as soon as water forms from melting ice, it is at least a little warmer than the ice. After all, at zero degrees water becomes ice. At this point, I do not know for sure, but I am speculating (hypothesizing) based on the general information that I have. I wonder how I can test my hypothesis: Let us assume that I can measure the temperature of ice and of water with great accuracy. I should be able to easily make a mixture of ice and water, while measuring the temperature of each independently.

  • If my hypothesis is correct, I will find that at one atmosphere of pressure and in a chamber kept at exactly zero degrees Celsius the ice will warm to zero degrees Celsius and it will get no warmer. When it is warmer, it is water and not ice.
  • I will also observe that the water will be at least a little above zero degrees Celsius when it first melts away from the ice.
  • I apply heat to the ice and some ice melts.
To my surprise and annoyance, I find that the water is exactly zero degrees Celsius. We have a problem. My fellow engineers need an answer, and I've been hyping my hypothesis all over the place. Eureka! I have found it! Keeping the chamber at zero degrees is the problem; as soon as the ice melts, the chamber air starts to cool the water, and it must also be cooling the thermometers, leading to an experimental error in the readings! I'll keep the chamber at 5 degrees Celsius. I go back to the lab and I notice that my containers now all have a mix of ice and water, and the chamber is at exactly zero degrees Celsius. Not only that, all the ice is now at zero degrees Celsius, and so is the water! Exactly! Now I am just plain confused. I leave the chamber exactly as it is for several days and nothing changes. Everything in the chamber is verified to be at zero degrees Celsius, water is not in the process of freezing, and the ice is no longer melting. It just all stays in equilibrium. If my hypothesis were correct, there would be no water in the chamber, because supposedly at zero degrees Celsius all water is ice, and water is always at least a little above zero degrees. My hypothesis has tanked; time for a new one. I wonder and wonder, and spend a few sleepless nights. Then I realize-- it has something to do with heat; it must. It has something to do with adding or with taking away heat... Hmmm. Testing a hypothesis is something like that. You wonder, and you explore. There is no fixed formula for always coming up with the right hypothesis or the right way to test it. Think about it; if there were such a formula, then all the questions along with all the right answers would be derivable from the formula alone. No such thing. [This would not be analogous to the Theory of Everything.]

Answer A hypothesis is tested by designing an experiment to prove or disprove it. The new Hadron Collider is trying to prove or disprove several hypotheses. One is that there is a particle called the Higgs boson. So watch out for the results.

Parts of the scinetific method?

Ask a question. Form a hypothesis. Prodedure. Data. Evidence. Conclusion. Reasons for error.

There are many other forms of the scientific method. If this is not useful... One word for ya... GOOGLE!

What is the correct order for performing these activities?

stretch, warm up, exercise, cool down

I Know but in A+ is like that

Warm Up, Stretch, exercise, cool down

What are the three major steps of the scientific method?

Actually, your question is imprecise. there are five: initial observation, hypothesis, experimentation, data, analysis, and conclusion. If you absolutely need to have just three, then hypothesis, experiment, and conclusion is... best. :)

Who introduced the scientific method?

The scientific method was developed over a few centuries, especially in the Renaissance. Galileo had a big part on developing it. Francis Bacon developed the scientific method.

What is the different shape of scientific method?

The scientific method is a scientific method for systematically acquiring new knowledge. The scientific method is typically applied to experiments, involving taking a hypothesis and using it to get applicable results.

What is OH in chemistry?

OH- (note the negative charge) is the hydroxide ion. This ion consists of a deprotonated water molecule; it acts as a base.

OH (typically denoted ROH) can also denote a hydroxyl group, which is a common functional group in organic chemistry. For example MeOH is methanol, CH3OH.

What observation method would you use to observe gross motor skills in a child?

I would watch the child as they play, run, walk, and move about a yard or play area. Might throw a ball at them to see how they catch the ball and balance themselves. I would look for right/left lateral movements and how well they move arms/legs and if they are in sync . I might set up an obstacle course to see if they can move through it and how they used their body in relationship to the objects/ space. I would make a check off sheet for myself with a scale of 1-10 for each movement and action.

What is the process of developing a hypothesis?

To develop a hypothesis you need to observe and make an educated guess, by starting the sentence with "If...then.....because...."

How did your experiment prove or disprove the hypothesis?

That depends on the result of the experiment. The experiment is a way to test a hypothesis, and it's completely fine if the experiment disproves the hypothesis. Ideally, though, the experiment will support the hypothesis.

After scientist make a hypothesis they perform a?

Answer

According to the scientific method, scientists perform an experiment.

Answer

I suppose you could say scientists perform an experiment next, but that is skipping some crucial points. How can you perform an experiment when all you have are ideas? Before you test out your hypothesis, you need to gather materials and draw up your procedure. Scientists just don't jump into something; they need a step-by-step plan of how they will carry out their test. In addition, they will also make predictions given their hypothesis. They need to know what result(s) will support or falsify the initial hypothesis.

Ambient temperature and water temperature difference?

Ambient refers to the temperature of the surrounding air, i.e not at parking lot level etc. Ambient means the temperature not being effected by mechanical means, like AC or any heat source. example, if you serve a wine at ambient temperature, it is not a specific number it is what ever the room is at the time.