Thursday, March 26, 2020

Research Problem and Objectives free essay sample

This is because we want to identify and investigate what is the impact of using Smartphone during their study sessions whether it’s give positive or negative impact. This is proved by other researcher that found the other title about Smartphone which is ‘Student Engagement and Experience Journal, volume1 (issue1). Title: Considering the Smartphone Learner: an investigation into student interest in the use of personal technology to enhance their learning by Woodcock, B. Middleton, A. and Nortcliffe, A. (2012). The research sought to establish the extent to which students are autonomously harnessing Smartphone technology to support their learning and the nature of this use. Initial findings were explored through student interviews. The study found that students, who own Smartphones are largely unaware of their potential to support learning and, in general, do not install Smartphone applications for that purpose’. And also ‘According to Eteokleous and Ktoridou (2009), the advances in mobile technologies have brought additional opportunities in the new era of mobile learning, making it possible and easy to enrich the learning experiences of individual learners. We will write a custom essay sample on Research Problem and Objectives or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The opportunities offered by the most recent mobile technology, in the development of mobile phones present new opportunities and new challenges to educational systems. For data analysis the study by Eteokleous and Ktoridou (2009) used the chi-square (x2), the nonparametric statistics test testing for the distribution of scores across the groups’. We will use questionnaire and survey the student in SBE about this problem.

Friday, March 6, 2020

Geode of Blue Copper Sulfate Crystals Tutorial

Geode of Blue Copper Sulfate Crystals Tutorial Geodes are a type of rock containing crystals. Normally, millions of years are required for flowing water and minerals to deposit crystals. You can make your own geode in only a few days. Grow beautiful translucent blue crystals of copper sulfate pentahydrate inside an egg shell to make your own geode. This project is of average difficulty and will take 2 to 3 days to finish. What You Need An eggHot waterCopper sulfate Here's How to Do It First, you need to prepare the eggshell. A natural geode forms inside a mineral. For this project, the mineral is the calcium carbonate of an eggshell. Carefully crack open an egg, discard the egg, and keep the shell. Clean the egg from the shell. Try for a clean break, to create two halves of the shell, or you may wish to just remove the top of the shell, for a more ball-shaped geode.In a separate container, add copper sulfate to 1/4 cup of hot water. The amount of copper sulfate isnt exact. You want to stir copper sulfate into the water until no more will dissolve. More is not better! It should take a few pinches of solid material to make a saturated solution.Pour the copper sulfate solution into the eggshell.Place the eggshell in a location where it can remain undisturbed for 2 to 3 days. You may want to place the eggshell in another container to keep it from falling over.Observe your geode each day. Crystals should appear by the end of the first day and will be at their best afte r the second or third day. You can pour out the solution and allow your geode to dry after a couple of days or you can let the solution fully evaporate (a  week or two). Tips for Making a Geode of Copper Sulfate Crystals Even a small increase in the temperature of the water will greatly affect the amount of copper sulfate (CuS04 . 5H20) that will dissolve.Copper sulfate is harmful if swallowed and can irritate skin and mucous membranes. In case of contact, rinse skin with water. If swallowed, give water and call a physician.Copper sulfate pentahydrate crystals contain water, so if you want to store your finished geode, keep it in a sealed container. Otherwise, water will evaporate from the crystals, leaving them dull and powdery. The gray or greenish powder is the anhydrous form of copper sulfate.The archaic name for copper (II) sulfate is blue vitriol.Copper sulfate is used in copper plating, blood tests for anemia, in algicides and fungicides, in textile manufacturing, and as a desiccant.