A Science Investigatory Project on Liquid Powered Flashlight

Abstract

Flashlights are an essential part of any kit as they give light when no other source is available, and they are much safer than candles. The only problem is the availability of batteries when we ran out of it. Liquids like vinegar and other solutions can be a source of electricity and can be used as an alternative for batteries. That is why the researchers developed a product that can be easily used by everybody without the hassle of expensive materials and no harm brought upon its user. The research methodutilized in this study is quantitative analysis. The participants of the study sampled 10 BCP Science Teachers and 5 BCP Science Experts to test the significant differences in the level of acceptability of liquid-powered flashlight in terms of longevity, brightness, and energy-saving using t-test at the level of significance of 0.01 and degree of freedom of 13. The results of the study in terms of longevity, brightness, and energy-saving are acceptable as assessed by 5 Science Experts and 10 Science Teachers of Bestlink College of the Philippines. There is a significant difference between the assessments of the two groups of respondents in terms of the cited variables. The Science Teachers obtained an overall weighted mean of 3.73, interpreted as highly acceptable with a variance of 0.020, while the Science Experts obtained an overall weighted mean of 3.23, interpreted as acceptable, with a variance of 0.016; both have a t-computed of 6.52 with a degree of freedom of 13 with the value of 2.650; the t-computed/t-critical, as a result, showed that the assessments of the two groups of respondents are Acceptable. The subsequent discussions forwarded by the two groups of respondents are the following: use Manganese Dioxide to hasten chemical reaction; provide another container to improve the design of the flashlight; use a single light bulb to improve the longevity of the flashlight, and researchers have to measure the amount of energy used to conserve energy.