Open Ended Investigation on Earthworms

Open Ended Investigation - Biology Year 11 By David Vineburg, Daniel Glynn and Thomas Marsland Weighting: 15% Due booking: Monday 8th September Learning Experiment Aim: to screen out the learning ability of earthworms in two completely disparate environments. Apparatus: Shoeboxes x3 Sticky tape One earthworm demesne 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. shit the lid of one side of the T forward and pass the other closed d have got. 3. In one element fancy the primer coat to the base of the shoebox. On top of the flat coat spray approximately water so it is moist and disperse bits of the apple on top. 4. In the other section obligate the strip of sandpaper to the entry. Behind this pour in more or less sand and put the cut up donut on top of this. 5. When the T Box has both environments ready turn over the worm to travel by means of a t its own pleasure. 6. all(prenominal) time the worm finds a specific area, record what happened. geminate step 5 and 6 until you are satisfied with your observations. 7. like a shot that the worm has experienced this environment switch the sides of the T shoebox kettle of fish around. Swap the environments to its other side. 8. Rep eat on steps 5 and 6 until you are satisfied with your observations.

Questions Benefits of Earthworms in soil? Earthworms tunnel through the earth, excreting polysaccharides. Polysaccharides are sugars that act like glue to shoot out the pencil-size tunnels, preserving them f or years. As they move through the earth bot! h horizontally and vertically earthworms drag bits of organic material around, lot to change integrity organic matter into the soil. As they eat the organic material, they wrench it into rich nutrients by leaving castings everyplace they go. If you want to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay