Earth Worm Lab Hypothesis

If different abiotic environmental variables are offered to an earthworm, will they prefer one over another? We planned and carried out investigations by planning the experiments the worm was going to do, and we carried out investigations by investigating and writing down what happened. One cross-cutting concept that was in the lab was patterns because 3 out of 4 experiments ended in the worm picking the same thing 3 times. The first hypothesis is that if worms are placed in an area with light and darkness then the worm will move toward the light. The results of the experiment was that the worm went toward the light once, and to the dark side twice. I reject my hypothesis because the worm went toward the dark side, more than the light side. Two possible errors in the experiment is that the …show more content…
The results of the experiment was that the worm went toward the water all 3 times. I accept my hypothesis because I correctly predicted that the worm would go to the water. Two possible errors in the experiment is that the paper towels with the substances were not completely flat, and that the saltwater might not have been as salty as water you would find in the ocean. Two improvements would have been to flatten the paper towels, and to get water from the ocean. The final hypothesis is that if worms are placed in an area with rough sandpaper and smooth plastic the worm will move to the smooth plastic. The results of the experiment is that the worm went toward the sandpaper all 3 times. I reject my hypothesis because I incorrectly predicted that the worm would go to the plastic, when it actually went toward the sandpaper. Two possible errors in the experiment is that the two surfaces were not completely flat, and the size of the surfaces were not equal. Two improvements would have been to flatten the 2 surfaces and to cut the papers so they are