Science Essays

PROBLEM/RESEARCH QUESTION In this investigation, we are researching and investigating whether the concentration/percentage of NaCl (salt) in water affects the germination rate of seeds and if so, which concentration germinates the most seeds. We will formulate our research by conducting an experiment in which we will observe the germination of …

Graph Showing the effect different volumes of Sodium Fluoride has on the average rate of production of H+ ions as measured by the colour change of resazurine Comment on Graph: The graph depicts a positive trend, as the amount of Sodium Fluoride increases the average rate of H+ ions as …

Hypothesis: The potato will lose weight and become shrank when they are put in salt solutions. The higher concentrated the solution, the more the potato shrinks. Osmosis is the passage of water at a cellular level from an area of low solute concentration to an area of high solute concentration …

Living things require energy to stay alive. The main energy source for autotrophs, a group of organisms that produce their own food, achieve this by gathering natural commodities such as water and sunlight. These sources of energy are converted through a series of biochemical l processes into substances that the …

Acid rain is caused by the presence of SOâ, NOâ which mixes with the atmospheric gases and in the soil which is emitted by human activities such as mining. Acid rain has a pH which is lower than 5.6 which harms the soil and affects the growth rate. Natural rain …

From analyzing the different urine samples containing glucose, albumin, an altered pH, and ketones, many observations were made. Through Benedict’s test, the Biuret test, the pH test and the odour test, many different characteristics were found. Ultimately, the unknown sample was found through these 4 tests. It was notable that …

Purpose and Background: To refresh my powers of observation and encourage the use of the scientific method while taking a walk in the woods. Materials and Equipment: Paper, Colored Pencils, Internet Procedure: I. 1. The wind is slight and coming from a southern direction. It sounds like a buzzing. 2. …

Background: Carbohydrates are composed of only the elements Carbon, Hydrogen, and Oxygen, and all carbohydrates have the same empirical formula: (C H O). They provide a source of energy to all cells. Plants manufacture their carbohydrates through the process of photosynthesis. Animals need carbohydrates to function, but they cannot produce …

Research Question: To investigate how different temperatures affect the beetroot pigment and finding out the absorbance and transmittance % using a visible spectrophotometer. Background Information: Beetroots contain betalains which are the red pigments present in the cell vacuole. Betalains are soluble in water and they contain nitrogen. Betalains extracted from …

Introduction The most significant part of our world is that all of the world’s fields and areas of knowledge can relate to each other even in the most farfetched ways. By connecting these different faculties together, one can create new fields that can greatly help our world and the human …