Is there a difference between sources of experimental error and sources of error?

yes experimental error is when you did something wrong not on purpose though. like stopping the time clock too early or too late but not going back to fix it.

sources of error comes from the materials. maybe since one the materials has been used for a long time because surely kids every year use it, so maybe the outcome can be little off because of that technicality

Yes, there is a difference between sources of experimental error and sources of error.

Sources of experimental error refer to mistakes or inaccuracies that occur during the actual experiment or data collection process. These errors can arise from various factors such as human error, equipment limitations, or procedural flaws. Examples of experimental errors include inaccuracies in measurement, uncertainties in data, or inconsistencies in experimental conditions. These errors are typically unintended and can affect the reliability and validity of the experimental results.

On the other hand, sources of error are broader and encompass factors that can affect the outcome or interpretation of an experiment, including experimental errors. These can include systematic errors, random errors, or uncertainties associated with the materials, instruments, or methods used in the experiment. Sources of error can also arise from external factors such as environmental conditions or variations in the samples or subjects being studied. It's important to identify and consider these sources of error to ensure the accuracy and integrity of the experimental findings.

To differentiate between the two, it is helpful to remember that sources of experimental error are specific to the experiment and relate to mistakes or inaccuracies in data collection, while sources of error encompass a wider range of factors that can influence the outcome of an experiment, including experimental errors.