Well, it depends on your experiment. If you're adjusting the amount of cooking oil before an experiment, it's an independent variable. If you're calculating how much there is after the experiment, it would be a dependent variable.
The dependent variable in a lava lamp experiment could be the height of the separated oil and water layers, the speed of the moving bubbles, or the color intensity of the lamp's glow. It is the variable that is being measured and is expected to change in response to the independent variable being tested.
Your independent variable when using water and oil is the type of liquid you choose to manipulate in your experiment. If you are testing how different conditions affect their interaction, such as temperature or mixing methods, those conditions would be considered your independent variables. The dependent variable would then be the outcome you measure, such as the degree of mixing or separation between the two liquids.
Water
The dependent variable in a homemade lava lamp experiment could be the amount of time it takes for the oil and water to separate, the number of bubbles formed, or the height of the "lava lamp" effect.
The independent variable of a homemade lava lamp experiment could be the type or amount of oil used, the type or amount of water used, or the type or amount of effervescent tablets used. This variable is manipulated by the experimenter to observe its effect on the outcome of the lava lamp's behavior.
In a homemade lava lamp experiment, the independent variable is the factor that is being manipulated or changed by the researcher, such as the type or amount of ingredients used in the lava lamp. The dependent variable is the factor that is being measured or observed as a result of the changes made to the independent variable, such as the rate of bubbling or movement of the colored liquid in the lava lamp. Other controlled variables, such as room temperature, container size, and stirring technique, should also be considered to ensure the validity of the experiment.
Yes, cooking oil is made out of oil.
cooking oil
Jews use oil in cooking for the same reasons that anyone uses oil in cooking.
Currently, very dependent.
The main advantage is to re-use (re-cycle) the cooking oil again, which saves having to buy new cooking oil. Though, eventually, new cooking oil will be needed to replace or top-up old cooking oil lost to evaporation, or cooking oil tainted with a strong smell, possibly from cooking a lot of smelly fish.
Mineral oil should NEVER be used for cooking. It is a petroleum byproduct, not a food-based cooking oil.