Ecology
This document outlines a series of experiments conducted to analyze various soil properties in Holland. These investigations included soil profile examination, soil type determination, organic matter content, grain size analysis, and pH rate testing. Each experiment was grounded in a hypothesis that was later confirmed or rejected based on the results. Notably, the research highlighted the presence of clay-like soils and indicated variations in grain size and organic matter burning potential, providing valuable insights into local soil characteristics.
Ecology
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Presentation Transcript
Ecology Holland Part 1
Experiment 13: soilprofile Question: Which types of soil are in the ground? Hypothesis: we expected te lowerlayers of ground to be more wet and more claylike. Whichmaterials • drill• piece of white plastic• Tape measure• Sandwich bags• blackmarker
Results: Conclusion: Our question has been answered cause we have learned the different layers. We also accept our hypothesis
Experiment 14: soildetermenation Question: which type of ground? Hypothesis: we expect the ground to be clay like. Conclusion: the ground we examined seems to be “vaaggrond”. We accept the hypothesis, the soil is like clay.
Experiment 19 organic matter content Question: which percentage of the soil sample willburn and begone. Hypothesis: we expectthat half of the sample willburn and that we will have only half of it. material : • glow spoon • soil sample • Bunsen burner • Scale
Results: Conclusion: The question is answeredbythoseresults, we accept our hypothesis causeabout half of the sample has burnt.
Experiment 20: grainsize • Question: What size of the grain? • Hypothesis: We expect much variation • Material: - soil sample - sevenset
Results: • Conclusion:There is much variation in the grain size.The hypothesis was right.
Experiment 21: pH-rate • Question: What is the pH-rate? • Hypothesis: We expect just above 7 • Material: - soil sample - glass - pH-counter • Conclusion: The pH-rate is 7,84, so we were near to this one
