Earthworm reaction to chemical stimulus of ammoniaamangill94
The students tested earthworms' reactions to the chemical stimulus of ammonia versus water by placing paper towels soaked in each liquid on a tray with earthworms in the center. In all 3 trials, the earthworms moved to the side with the water-soaked paper towel. In the third trial, one worm died after coming into contact with the ammonia. The conclusion is that earthworms can detect chemicals through chemoreceptors and do not respond well to ammonia, which can even cause death upon direct contact.
The document summarizes a gas absorption experiment that analyzed the effect of various factors on the overall mass transfer coefficient (KLa) and absorption rate (Ra) of CO2. The experiment measured physical absorption using water and chemical absorption using an NaOH solution, varying liquid flow rates and gas composition. Results showed KLa and Ra were greater with higher liquid flows and CO2 concentration. Chemical absorption and higher temperatures produced better absorption. Recommendations included relocating the liquid feed bucket for easier access and conducting more runs.
This document describes how to perform paper chromatography to separate mixtures of colored ink dyes. Paper chromatography works by using solvents to differentially migrate the dye mixtures across a stationary filter paper phase based on differences in their polarities. The experiment demonstrated separation of 6 colored ink dyes (black, red, green, blue, purple, pink) across solutions with varying concentrations of isopropanol solvent. Observation of how far each dye migrated showed they separated into distinct components due to differences in solubility related to their chemical structures and polarities.
Earthworm reaction to chemical stimulus of ammoniaamangill94
The students tested earthworms' reactions to the chemical stimulus of ammonia versus water by placing paper towels soaked in each liquid on a tray with earthworms in the center. In all 3 trials, the earthworms moved to the side with the water-soaked paper towel. In the third trial, one worm died after coming into contact with the ammonia. The conclusion is that earthworms can detect chemicals through chemoreceptors and do not respond well to ammonia, which can even cause death upon direct contact.
The document summarizes a gas absorption experiment that analyzed the effect of various factors on the overall mass transfer coefficient (KLa) and absorption rate (Ra) of CO2. The experiment measured physical absorption using water and chemical absorption using an NaOH solution, varying liquid flow rates and gas composition. Results showed KLa and Ra were greater with higher liquid flows and CO2 concentration. Chemical absorption and higher temperatures produced better absorption. Recommendations included relocating the liquid feed bucket for easier access and conducting more runs.
This document describes how to perform paper chromatography to separate mixtures of colored ink dyes. Paper chromatography works by using solvents to differentially migrate the dye mixtures across a stationary filter paper phase based on differences in their polarities. The experiment demonstrated separation of 6 colored ink dyes (black, red, green, blue, purple, pink) across solutions with varying concentrations of isopropanol solvent. Observation of how far each dye migrated showed they separated into distinct components due to differences in solubility related to their chemical structures and polarities.
3. 게임 내 의사소통은 전적에 영향을 끼치지 않는다!! 설계 전 자료조사 - fps게임 중 의사소통이 활발한 맵의 조사 영상 촬영 등을 통한 실제 상황에서의 대화 양상 분석 가설과 설계 – 주제
4. 게임 내 의사소통은 전적에 영향을 끼치지 않는다!! 설계 전 자료조사 - fps게임 중 의사소통이 활발한 맵의 조사 영상 촬영 등을 통한 실제 상황에서의 대화 양상 분석 자료 조사 후 결과 -국내서 인기있는fps(서든어택, 스페셜포스,카스, 아바)를 조사 결과 아바가 제일 의사 소통이 활발히 일어남 가설과 설계 – 주제
5. 1차 실험의 내용 플레이어가 일정 수치까지 올린 S/D를기준 - 의사소통의 활성 / 비활성의 차이를 비교해봄 실험의 결과 분석 가설과 설계 _ 1차 실험
