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Because the scientific method means thinking of a hypothesis and proving a cause and effect in nature. If there is no control, then you can not prove the hypothesis of the cause and effect because you can not prove that your experiment caused the effect. If you have a theory that pepsi causes grass to grow, and with no control you manage to show that your lawn grew grass, how could you ever say that it was the pepsi that caused the growth unless your next door neighboors's yard died during the same time?
What else can I help you with?
What is the purpose of using multiple control in an experiment?
To help you conclude that no uncontrolled factors significantly influenced your results. To help you determine that your experimental results are valid To help control for factors that aren't being tested but might affect results
What must an experiment have in order to be valid?
to represent the population.at random. -apex (;
What word describes the steps used in an experiment?
The word is "methodology." It refers to the systematic approach or procedure followed in conducting an experiment to achieve reliable and valid results.
What is 'planning and designing' of experiments?
This means to decide on the procedure to follow during the experiment. You decide which factor to vary, which factor to measure, and how you will control the other variables. You specify which measuring instruments you'll use, the number and frequency of your readings and the number of repeats for each reading.
What should be close to the real thing in an experiment?
In an experiment, the conditions, variables, and procedures should closely resemble real-life situations to ensure the results are valid and applicable to the real world. This includes controlling for as many extraneous variables as possible and designing the experiment in a way that reflects the natural environment or scenario being studied.
Why a control needed in a valid experiment?
A control is needed in a valid experiment because without controls then more then one variable is being tested. This can mess up the results.
What are the components needed in order for an experiment to be valid?
For an experiment to be valid, it needs a control group to compare results, random assignment of participants to groups to minimize bias, manipulation of an independent variable to observe its effect, and reliable measures to accurately record outcomes.
Why is a control needed in a valid experiment?
To comare and contrast the differences and similarites.Im not really sure if this is right becuz i had the same question so ill see th votes in a few.Well wish me and u good luck cuz for me its due on monday
What does a valid experiment must include?
a control group and statistical analysys of the resultsalso, to be considered valid, the results of a scientific experiment must be repeatable and still proven correct.
What are the compounds needed in order for an experiment to be valid?
The necessary compounds depend on the specific experiment being conducted. However, common compounds include reagents for reactions, solvents for dissolving substances, standards for calibration, and control substances for comparison. It is essential to carefully select and prepare these compounds to ensure accurate and reproducible results in the experiment.
What makes a valid experiment?
A valid experiment is characterized by a clear hypothesis, a control group for comparison, random assignment of participants, and the ability to replicate the results. It should also have ethical considerations and controls in place to minimize bias and confounding variables.
What is the purpose of using multiple control in an experiment?
To help you conclude that no uncontrolled factors significantly influenced your results. To help you determine that your experimental results are valid To help control for factors that aren't being tested but might affect results
Which will make his experiment more valid?
To make an experiment more valid, ensure that the sample size is representative of the population, use random assignment to assign participants to groups, and control for any confounding variables that could impact the results.
What must an experiment have in order to be valid?
to represent the population.at random. -apex (;
What questions should Emma ask the student to find out if the student's conclusion was valid?
I.What types of plants were used in the experiment?II.What was the experiment's control? III.Was the experiment repeated more than once?
The analysis of a data gathered during a particular experiment is necessary in order to?
Draw a valid conclusion for that experiment.
What is the minimum number of data points an experiment should gather?
A minimum of 6 sets of data are needed to make a valid conclusion.
