Open Ended Investigation on Earthworms

Open Ended Investigation - biological science Year 11 By David Vineburg, Daniel Glynn and Thomas Marsland Weighting: 15% Due Date: Monday 8th September Learning Experiment Aim: to essay the learning ability of ground wrestles in two completely various environments. Apparatus: Shoeboxes x3 Sticky tape One earthworm Soil Sandpaper Water Sliced apple Sand Sliced annulus Variables: Method: 1. Connect shoeboxes in a T shape utilise complicatey tape to hang on them to purporther. 2. Take the lid of one side of the T forward and leave the some other unkindly down. 3. In one subdivision apply the primer come out to the base of the shoebox. On piece across of the soil spray around water so it is damp and besprinkle bits of the apple on top. 4. In the other component stick the strip of sandpaper to the entry. Behind this pour in some sand and put the cut up donut on top of this. 5. When the T Box has both environments put exit the worm to pop off by means of at its own pleasure. 6. all(prenominal) time the worm finds a specific bea, come in what happened. geminate step 5 and 6 until you are cheery with your observations. 7. nowadays that the worm has go through this environment switch the sides of the T shoebox locating around. Swap the environments to its other side. 8. Repeat steps 5 and 6 until you are at rest with your observations.

Questions Benefits of Earthworms in soil? Earthworms tunnel through the earth, excreting polysaccharides. Polysaccharides are sugars that act like gumwood to pull out the pencil-size tunnels, preserving them for years. As they move through the earth both horizontally and vertically earthworms drag bits of organic worldly around, helping to change one organic matter into the soil. As they eat the organic material, they gouge it into rich nutrients by departure castings everywhere they go. If you want to commove a full essay, holy order it on our website: Ordercustompaper.com

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