Figure 2. Snap-top vials with sediment and microplastic samples (left) for the model experiment of sediment analysis. The reserve containers with microplastic contents are located on the right. 40 g of sediment are contaminated here with a known number of microplastic particles. The type of plastic and the number remains initially unknown to the students. Subsequently, this sample is analysed by means of the sediment separation procedure, sand is separated from plastic and then re-assigned to the samples or everyday objects

From

Student Experiments on the Topic of Micro-plastics in the Environment for Secondary Education Level II: The Coffee Pad Machine Experiment and Sediment Analysis

Sarah Vortmann, Dominique Remy, Jörg Klasmeier, Marco Beeken

World Journal of Chemical Education. 2019, 7(2), 96-101 doi:10.12691/wjce-7-2-9