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To ensure that an experiment is testing only one variable scientists often run a?
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∙ 14y ago
Control Experiment
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∙ 14y ago
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Something that causes changes in an experiment?
The factors that can influence the course of a reaction are known as variables and or sources of error. Experiments and testing seek to control these variables, errors and account for them to ensure quality and safety of their results.
Why do scientists follow a set order of steps when carrying out a scientific investigation?
To ensure reliable and repeatable observations and results
How can a researcher ensure that water being used for an experiment will vaporize at a point lower than normal temperature?
By decreasing pressure in the container (: Plato is easy !
How can you ensure that a tympanic temperature is accurate?
rectal
What does a farmer do before planting to ensure that plant grows well?
farmers identify the first the ph level of the soil before they plant to ensure that plants grows well
What is a controlable variable?
A variable which can be controlled by some other variables or some other parameters is known as controlled variable. A controlled variable is something that can be changed by the experimenter. It is also known as the independent variable. It is something that gives a measure by which to gauge everything else by. For example, if you were testing the effectiveness of a plant fertilizer the "control" would be a plant that is given no fertilizer at all. A controlled variable is the variable that stays the same through out the experiment meaning no changes to it.
What is the controlled experiment in a science experiment?
The control in a science experiment is the same thing as a constant. It is something that you keep the same the entire experiment. For example if you were testing how various locations affect temperature your constants would be the thermometer you used and the time for measuring the temperature. If you don't have a constant than your experiment results won't be accurate.
What do scientists write after they summarize their experiment and results?
they do finally arrive at Theory w to ensure no bias existed in the original experiment hich later lead to law/principle
Why do scientists use the data from controlled experiments?
To ensure results are of optimal percent error, scientists must manipulate only one variable. Therefore, they use controlled experiments.
What scientists use the scientific method?
Most scientists in the world use the scientific method because it is the best way to ensure that an experiment is done correctly and that the results can be reproduced.
Why do scientists use controlled experiments to ensure that the responding variable does not change to ensure that hypotheses are proven correct to ensure that the data collected is related to one cha?
The purpose is to obtain sure, repetable and valuable experimental data.
What is any factor that is not allowed to change in an experiment called?
A constant. It is important to ensure that only one factor changes in an experiment (called the independent variable). All other factors need to remain constant.
What should you do if repeated trials give very different results?
If , in the course of your experiment, you run repeated trials with differing results, it is necessary to ensure that only one variable is changing for each experiment. Recheck the data collected for errors.
What is the variable that changes in response to the expirementation?
In a scientific experiment, there are three variables: -The independent variable, what is changed -The dependent variabls/s, what changes in response to the changing of the independent variable (what you are talking about here) -The controlled variable/s, what you need to ensure remain the same throughout al of the trials in order to make it a fair test.
What is it called when a scientist is conducting an experiment and and it has factors that can affect the results?
If they are supposed to affect the results in the experiment ie. they are what is being tested, they are the test variables. If they must be kept the same to ensure a fair test ie. the scientist is not testing with them, they are called control variables.
What methods is most helpful for revealing cause-effect relationships?
Experiments with a control and variable...not correlational studies because they don't ensure that the cause led directly to the "effects"
What is the purpose of ethical guideline for the handing of experimental subjects?
To ensure the safe and humane treatment of all living organisms in an experiment. To help scientists plan an experiment in which no animals or humans are harmed
