Very probable the filter was not adequate.
This depends on your experiment and glassware.
A hypothesis.
The color of the filtrate will be clear or colorless because copper carbonate is insoluble in water and will be retained on the filter paper, leaving behind a clear liquid.
A set of controlled observations that test a proposed explanation are known as an experiment. The proposed explanation is known as the hypothesis of the experiment.
Hypothesis =)
The explanation supported by many experiments is called scientific theory.
Possible errors in filtration experiment
Detergent is added to the filtrate to break down and solubilize any remaining substances that may be present, allowing them to pass through the filter. This helps ensure that the filtrate is clear and free of any residual impurities before further analysis or processing.
More trials of the experiment.
A Hypothesis
More trials of the experiment.
Be clear about the purpose of the experiment.