Table of Contents
What predicts the outcome of an experiment?
A useful hypothesis will enable predictions, by reasoning including deductive reasoning. It might predict the outcome of an experiment in a laboratory setting or the observation of a phenomenon in nature. A hypothesis must be tested before it is corroborated and attributed any real validity.
Can the experiment be repeated with the same results?
Getting the same result when an experiment is repeated is called replication. Replication is important in science so scientists can “check their work.” The result of an investigation is not likely to be well accepted unless the investigation is repeated many times and the same result is always obtained.
How do you predict a test?
Predicting
- Collect data using your senses, remember you use your senses to make observations.
- Search for patterns of behavior and or characteristics.
- Develop statements about you think future observations will be.
- Test the prediction and observe what happens.
How do you write a scientific prediction?
The scientific method has five basic steps, plus one feedback step:
- Make an observation.
- Ask a question.
- Form a hypothesis, or testable explanation.
- Make a prediction based on the hypothesis.
- Test the prediction.
- Iterate: use the results to make new hypotheses or predictions.
Why is it important to run more than one trial of an experiment?
When we do experiments it’s a good idea to do multiple trials, that is, do the same experiment lots of times. When we do multiple trials of the same experiment, we can make sure that our results are consistent and not altered by random events.
Why is it important to repeat an experiment several times whenever possible?
Repeating an experiment more than once helps determine if the data was a fluke, or represents the normal case. It helps guard against jumping to conclusions without enough evidence. The number of repeats depends on many factors, including the spread of the data and the availability of resources.
How do you make a prediction in science?
How often do scientists repeat the same experiment?
Usually, scientists repeat an experiment three times, but the more times you do an experiment and get the same results, the more valid the results are. In this example, our results matched our prediction perfectly. But in reality, science is messy and results don’t always match our predictions.
How to compare the results of a prediction?
To compare these results to your prediction, the first step is to go back to your hypothesis. Re-read your hypothesis you wrote in the beginning to refresh your memory. In your hypothesis, you said that the plant in the dark would not grow. Now, go back to your data.
What happens when you change the experimental design?
Match the results you would expect with each change to the experimental design. The same result may occur with more than one experimental change. 1. The reaction will remain steadily over the 8 minutes 2. The reaction rate will approach zero before 8 minutes.
How to confirm the validity of an experiment?
The only way to confirm that your results were valid, or true, is to repeat the experiment multiple times. Usually, scientists repeat an experiment three times, but the more times you do an experiment and get the same results, the more valid the results are. In this example, our results matched our prediction perfectly.
https://www.youtube.com/watch?v=D3ZB2RTylR4