Pill bug experiment with sand and cornstarch

Wymeshia Robinson SCORE Experiment: Explore the pilbug's preferences 80% Pillbug's Preferences Lab Report Hypothesis The hypothesis to be tested in this experiment was: If pillbugs are attracted to cornstarch, then more will move to the chamber with cornstarch. Introduction Choice chambers allow us to explore the behavior of animals. By varying what there is on each side, one can test a hypothesis about which environment the animal prefers. To be able to test a hypothesis correctly, we must be able to rule out explanations other than the condition we are testing. So when the preference for a nutritional substance is tested, we must compare with a substance that is as similar to the test substance as possible except from the nutritional characteristic. Methods Cornstarch was used as a test substance on one side of the chambers. We waited some time before making most of the measurements so that the pillbugs had time to move to their favored substance. Materials 1 Cornstarch (ARGO) 2 2 choice chambers 20 pillbugs 3 Results Time Sand Cornstarch Empty (min) Upper Left (Sand) Upper Right (Cornstarch) Lower Left (Empty) 1 min 0 10 6 4 2 min 0 10 5 5 3 min 0 10 4 6 4 min 1 9 5 5 5 min 1 9 5 5 6 min 1 9 6 4 57 31 29 Average 3 Empty Lower Right (Empty) Fig.1 Summary table Pillbugs ( bugs ) 12.5 Time (min) 1 2 3 4 5 6 10 7.5 5 2.5 Upper Left (Sand) Upper Right (Cornstarch) Lower Left (Empty) Lower Right (Empty) Dish Fig.2 Summary table Time Sand Cornstarch Empty (min) Upper Left (Sand) Upper Right (Cornstarch) Lower Left (Empty) 1 min 0 10 6 4 2 min 0 10 5 5 3 min 0 10 4 6 4 min 1 9 5 5 5 min 1 9 5 5 6 min 1 9 6 4 57 31 29 Average 3 Empty Lower Right (Empty) Fig.3 Summary table Pillbugs ( bugs ) 12.5 Time (min) 1 2 3 4 5 6 10 7.5 5 2.5 Upper Left (Sand) Upper Right (Cornstarch) Lower Left (Empty) Lower Right (Empty) Dish Fig.4 Summary table Discussion Our hypothesis was: If pillbugs are attracted to cornstarch, then more will move to the chamber with cornstarch.. Given our results, we find that there is support for the hypothesis. Conclusion The main purpose of this lab was to use the scientific method in practice. A hypothesis was developed and a strategy for testing it was chosen. We found that there is support for the hypothesis. Wymeshia Robinson SCORE Hand washing 100% Preparation for the hand washing simulator 100% Understand the important role of handwashing in relation to lab work 100% Hand washing is not necessary if gloves have been worn throughout the lab exercise. Did you know the answer: You said 'Unsure'. You answered correctly: False Gloves are not guaranteed to be holefree, and so you should always wash your hands after removing them. Also, washing your hands removes the residue from the gloves that may cause skin irritation or allergy. Recall the correct sequence of steps during handwashing 100% List these steps in order to indicate the correct procedure for hand washing. Did you know the answer: You said 'Think so'. You answered correctly: • Remove watch and jewelry • Wet hands • Apply soap • Rub hands together • Rinse soaps from hands under water • Dry hands with towel and use towel to turn off faucet. Execution of hand washing 100% Successfully clean hands 100% Help question: Watch 100% Help question: Soap 100% Help question: Scrub hands 100% You should scrub your hands for a minimum of ______ according to the Centers of Disease Control. Did you know the answer: You said 'Think so'. You answered correctly: 20 seconds Help question: Clean nails 100% Besides rubbing your hands together, what step is an important part of thorough handwashing? Did you know the answer: You said 'Unsure'. You answered correctly: Cleaning under the fingernails with stick or brush What is the best way to ensure that you have completely cleaned underneath your fingernails? Did you know the answer: You said 'Unsure'. You answered correctly: Use a hand brush and a wooden stick to get under the nails. Help question: Towel 100% When turning off running water, it is important to remember to _______. Did you know the answer: You said 'Unsure'. You answered correctly: use a towel when touching the faucet handle What is a towel used for during the handwashing process? Did you know the answer: You said 'Unsure'. You answered correctly: To dry your hands after thoroughly scrubbing and rinsing them You missed correct answers: To turn off the faucet Remove watch before applying soap 100% You correctly removed the watch before washing your hands. This helps to ensure a thorough cleaning of your hands. Wet hands with water before applying soap 100% You did a good job of remembering to wet your hands as a first step to hand washing. This allows soap to easily lather without being rinsed off. It also protects your hands from soap irritation.