Constants
A constant factor is one maintained unchanged throughout an experiment so that it does not affect the outcome. These are also referred to as controlled variables.
seasons change very three months but cycles change rate vary from one to five years
I think you're referring to the "control". Read more here: http://en.wikipedia.org/wiki/Scientific_control
In an experiment, a factor or condition that is deliberately manipulated in order to determine whether it causes any change in another behavior or condition is an independent variable. The factor or condition that is measured at the end of an experiment and is presumed to vary as a result of the manipulations of the independent variables is called the dependent variable.
The variable that you change is the independent variable(which you change). This could be the amount of light, fertilizer or salt that you give to a plant to observe how it affects its growth. What you measure is the dependent variable(the variables that change due to the change in independent variable) eg mass of the plant each day or week, number of leaves or height. All other variables are called the control variables(variables that are constant throughout the experiment). These make the experiment a "fair test". In the above experiment if you were to vary the amount of salt in the soil then each plant must be given the same amount of light, fertilizer, water etc.
The factors which you change (vary) are called variables.
a variable
factors in an experiment that are kept the same and not allowed to change or vary.
Evolutionary change can occur gradually over time through a process known as gradualism, or it can happen rapidly in short bursts through a process called punctuated equilibrium. The speed of change can vary depending on the environmental pressures and genetic factors involved.
Ocean temperatures change on a seasonal basis, but there are other factors at play which complicate when, and how, and by how much it changes.
the moon can vary its brightness and the pink elephant called aphadophalis
Ocean temperatures change on a seasonal basis, but there are other factors at play which complicate when, and how, and by how much it changes.
No, speed can vary and one can still calculate the average speed of an entire trip. Average speed is equal to the change in distance divided by the change in time.
Density and temperature can both vary for a substance without changing the identity of the substance. The density of a substance can change with temperature, pressure, or the presence of impurities, while the temperature of a substance can change due to external factors like heating or cooling.
Dont talk ok
It will always vary from person to person and factors such as when you started puberty, what your diet is, genetic factors, and countless others. I would say just be happy with who you are and what you have and dont let anyone tell you otherwise.
Density and color can vary while the substance remains the same. Density is mass per unit volume, which can change depending on pressure or temperature. Color can vary due to factors such as lighting conditions or impurities in the substance.