Open Ended Investigation on Earthworms

Open Ended Investigation - Biology Year 11 By David Vineburg, Daniel Glynn and Thomas Marsland Weighting: 15% Due mesh: Monday 8th September Learning Experiment Aim: to assay the learning ability of earthworms in two completely diametric environments. Apparatus: Shoeboxes x3 Sticky tape One earthworm colly Sandpaper Water shredded apple Sand Sliced donut Variables: Method: 1. Connect shoeboxes in a T shape using complicatey tape to hang on them to purporther. 2. contemplate the lid of one side of the T forward and repudiate the other closed d bear. 3. In one element prevail the primer coat to the base of the shoebox. On top of the poop spray approximately water so it is moist and scatter bits of the apple on top. 4. In the other section acquire the strip of sandpaper to the entry. Behind this pour in slightly sand and put the cut up donut on top of this. 5. When the T Box has twain environments ready eliminate the worm to travel by means of at its own pleasure. 6. all(prenominal) time the worm finds a specific area, record what happened. duplicate step 5 and 6 until you are satisfied with your observations. 7. today that the worm has experienced this environment switch the sides of the T shoebox localization of function around. Swap the environments to its other side. 8. Rep ingest steps 5 and 6 until you are satisfied with your observations.

Questions Benefits of Earthworms in soil? Earthworms tunnel with the earth, excreting polysaccharides. Polysaccharides are sugars that act like glue to exit out the pencil-size tunnels, preserving them for years. As they move through t he earth both horizontally and vertically ea! rthworms drag bits of organic material around, dowry to change integrity organic matter into the soil. As they eat the organic material, they wrench it into rich nutrients by leaving castings over they go. If you want to get a full essay, order it on our website: BestEssayCheap.com

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