so scientists can compare result
A constant.
A constant is something that will ALWAYS remain the same in your experiment. For instance, the materials you use and the unit of measurements you use are examples of constants. An independent variable changes with the experiments.
To not let the gas come out ( His Expirement )
To not let the gas come out ( His Expirement )
Constant weight is important in scientific experiments to ensure that any change in measurements or observations is due to the variables being tested and not due to changes in weight. Maintaining a constant weight helps to minimize potential sources of error and increases the accuracy and reliability of the experimental results.
The constant is the value that stays the same throughout your experiment, whereas the variable value changes.
A "constant"
It's important to repeat experiments so then you know that you did the experiment right.
The gravitational constant, denoted as G, can be found through experiments involving the measurement of the gravitational force between two objects with known masses and distances. One common method is to use a torsion balance, which measures the twisting of a wire due to the gravitational attraction between two masses. By analyzing the data collected from these experiments, scientists can determine the value of the gravitational constant.
Mathematical analysis is tremendously important for understanding the result of an experiment.
so it can be a fair test
This would be 'the control group' which experiments are compared to.