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What variables did Pasteur change in his experiment to test the hypothesis of spontaneous generation?
Wiki User
∙ 12y ago
The shape of the flask!
Wiki User
∙ 12y ago
Pasteur changed the shape of the flask to have a curved neck rather than an open one. This allowed air to enter the flask, but prevented dust particles and microorganisms from directly entering. He also boiled the broth in the flask to sterilize it, which killed any existing microorganisms.
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What variables present in redi's experiment on spontaneous generation is not a controlled variable?
The presence of living organisms in the meat jars was not a controlled variable in Redi's experiment on spontaneous generation. This variable was dependent on the conditions set by Redi, rather than being controlled by him.
How do you come up with a hypothesis for a lab?
To come up with a hypothesis for a lab experiment, you need to make an educated guess or prediction about the relationship between two variables in the experiment. Review background research, identify the independent and dependent variables, and consider how changes in the independent variable might affect the dependent variable. Formulate a concise statement that captures this relationship and serves as the basis for your experiment.
What is science variables?
In a scientific experiment, variables are factors that can be changed, measured, or controlled. There are independent variables, which are manipulated by the researcher, and dependent variables, which are the outcomes or responses that are measured. Controlling variables are factors that are kept constant to ensure that they do not influence the results of the experiment.
How do you write a hyposes?
Do you mean "hypothesis"? If so, a hypothesis is a statement that predicts the relationship between variables in a research study. To write a hypothesis, you need to clearly state the independent and dependent variables being studied, as well as the expected direction of the relationship between them. Your hypothesis should be based on existing knowledge and be testable through research methods.
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.
What variables present in redi's experiment on spontaneous generation is not a controlled variable?
The presence of living organisms in the meat jars was not a controlled variable in Redi's experiment on spontaneous generation. This variable was dependent on the conditions set by Redi, rather than being controlled by him.
What was needhams experiment variables?
In Needham's experiment, the variables included the presence or absence of microorganisms, the method of heating used (whether the samples were boiled or not), and the type of sealed containers used to hold the broth. These variables were important to understand the effects of heat treatment and the role of microorganisms in the spontaneous generation of life.
When an experiment shows two variables are closely related the experiment shows?
hypothesis
When an experiment shows that shows that two variables are closely related the experiment shows?
hypothesis
How can an experiment that disproves hypothesis be useful?
by the variables. The variables are manipulated and responding. the manipulated ones are the one that is changed in the experiment. the responding variable is the one who is expected to change.
How can AN EXPERIMENT that disproves a hypothesis be used?
by the variables. The variables are manipulated and responding. the manipulated ones are the one that is changed in the experiment. the responding variable is the one who is expected to change.
When you make a conclusion about an experiment what do you need to concider?
You need to consider the results, your hypothesis, and the variables and controls used throughout the experiment.
How do hypothesis help in doing some experiment?
Because it will perform a test of how two variables might be related. This is when you are doing a real experiment.
What is the point in writing a hypothesis?
Writing out a hypothesis gives a window to whoever is reading the Scientific Report as to what variables are believed to be correlated and what the experiment will be testing.
What is the purpose of a hypothesis in an experiment?
The purpose of a hypothesis in an experiment is to make a testable prediction about the relationship between variables. It serves as a guide for the experiment, helping researchers to focus their efforts on collecting relevant data to either support or refute the hypothesis. Ultimately, the hypothesis helps to determine whether the experiment's results are statistically significant.
Is a logical statement about what will happen in an experiment if the hypothesis is correct?
A prediction is a logical statement about what will happen in an experiment if the hypothesis is correct. It is based on the proposed relationship between variables and helps guide the design and interpretation of the experiment. By testing the prediction, researchers can assess whether the hypothesis is supported or not.
Why is redi's experiment on spontaneous generation considered a controlled variable?
Redi showed the need to limit/control outside variables when he covered 1/2 the jars and got different results than the uncovered.
