Question

write the definition of independent variable here and include an example from a lab in class. write the definition of dependent variable here and include an example from a lab in class. write the definition of constant here and include an example from a lab in class. write the definition of experimental group here and include an example from a lab in class. write the definition of control group here and include an example from a lab in class.

Explanation:

1. Independent Variable: The variable that is deliberately changed or manipulated in an experiment to observe its effect on the dependent variable. For example, in a plant - growth experiment, the amount of sunlight given to plants is the independent variable.
2. Dependent Variable: The variable that is measured or observed and is expected to change as a result of the manipulation of the independent variable. In the plant - growth example, the height of the plants is the dependent variable.
3. Constant: A factor that remains the same throughout an experiment to ensure that only the independent variable affects the dependent variable. In the plant experiment, the type of soil could be a constant.
4. Experimental Group: The group in an experiment that receives the treatment or has the independent variable applied to it. In a drug - testing experiment, the group of patients given the actual drug is the experimental group.
5. Control Group: The group in an experiment that is identical to the experimental group except that it does not receive the treatment (the independent variable is not applied). In the drug - testing example, the group of patients given a placebo is the control group.

Answer:

1. Definition: The variable that is deliberately changed or manipulated in an experiment. Example: Amount of sunlight in a plant - growth experiment.
2. Definition: The variable that is measured and changes due to the independent variable. Example: Height of plants in a plant - growth experiment.
3. Definition: A factor that remains unchanged in an experiment. Example: Type of soil in a plant - growth experiment.
4. Definition: The group that receives the treatment in an experiment. Example: Group of patients given the actual drug in a drug - testing experiment.
5. Definition: The group that does not receive the treatment in an experiment. Example: Group of patients given a placebo in a drug - testing experiment.