The experimental procedure is critical in obtaining reliable results. One crucial step is to ensure that the conditions are consistent across all the trials. This could involve controlling variables such as the amount of water used, the temperature of the water, and the amount of force applied to the samples. Without controlling these variables, the results could be unpredictable and inconsistent.
To obtain better results, one possible step would be to increase the number of trials conducted. Conducting more trials could help to reduce the impact of random errors and improve the accuracy of the results.
The overall lab design should aim to help students understand the concepts better. Ideally, the lab should be designed to be interactive and engaging, with clear instructions and explanations of the underlying principles. The lab design should be flexible enough to allow students to explore different variables and test their hypotheses.
In terms of designing a better experiment, one possible approach would be to introduce additional variables, such as different types of rocks or soils. By varying the variables, students can gain a better understanding of how weathering and erosion work in different contexts.
Finally, I would recommend discussing your ideas with your classmates and learning from each other's perspectives. Sharing knowledge and working collaboratively can help to deepen your understanding of the experiment and the underlying concepts.