Investigating Factors that Affect the Rate of Reaction There are certain factors which affect the rates of reaction in an experiment. These factors are: · Pressure · Temperature · Concentration * Surface area / particle size and * The addition of a catalyst The factors that I will be concentrating on are temperature, concentration and surface area / particle size. Pressure Pressure influences the rate of reaction only when the reactants are in their gas phase. Pressure
Investigating Factors that Affect Heat Loss PROBLEM ======= I have been asked to investigate the link between colour and heat loss. Does the silver or the black cup lose its heat faster? HYPOTHESIS ========== I think that the black cup will lose heat faster than the silver cup because black absorbs heat, then releasing it out of the cup into the surrounding air and surface, where as the silver cup will reflect the heat back into the cup therefore keeping the water hotter for
Investigating Factors that Affect the Swinging Of a Pendulum Aim Our aim is to find out whether changing the variables of the swinging pendulum affects the speed. Preliminary Work In order to find out which variable/s affect the swinging of a pendulum, I need to test all the variables available. There are three variables we will be investigating: * The length of the string * The mass of the pendulum * The angle from which the pendulum is swung For each experiment, I will
Investigating Factors Affecting the Heat of Combustion of Alcohols PLANNING SECTION Introduction ------------ Alcohols are organic substances, and consist of Hydrogen, Oxygen and Carbon. All alcohols are toxic but the amount that can be tolerated by the human body varies for different alcohols. For example drinking small amounts of Methanol can lead to blindness and even death. Ethanol is the only alcohol that can be drunk safely and is found in all alcoholic drinks. Throughout this
Investigating Factors that Affect the Rate of Photosynthesis in Elodea Aim: To find out which factors affect the rate of photosynthesis in Elodea. Variables: The variables that might affect the rate of photosynthesis in this experiment are: Temperature: When the temperature rises so does the rate of photosynthesis; this is because as the temperature around the plant rises the enzymes controlling photosynthesis inside the chloroplasts heat up and start moving around faster, the fast
Investigating Factors that Affect the Rate of Catalase Action Investigation into the factors which affect the rate of catalase action. Planning Aim: To investigate the affect of concentration of the enzyme catalase on the decomposition reaction of hydrogen peroxide. The enzyme: Catalase is an enzyme found within the cells of many different plants and animals. In this case, it is found in celery. This enzyme speeds up the break down of hydrogen peroxide into water and oxygen, as
Investigating Factors that Affect the Amount of Heat Produced in Neutralisation I am going to investigate factors that affect the amount of heat produced in neutralisation. My objective is to plan and conduct an experiment from which I should be able to draw a firm conclusion that will either prove or disprove any predictions I have made. The factor I will be investigating is concentration
Investigating Factors That Affect The Action of Pepsin on Photographic Film Introduction ============ [IMAGE] This is an experiment to investigate the factors that affect the action of pepsin on photographic film. The photographic film is made up of three layers, plastic, photographic pigment and gelatine in between. See diagram: The protease enzyme digests the gelatine section, causing the other two layers to fall apart. Pepsin is a digestive enzyme found in the gastric
Investigating Factors Which Affect The Reaction Between Chalk and An Acid Introduction: Chalk is just one of many forms that calcium carbonate can take. It is made of the mineral remains of sea creatures from millions of years ago. It is quite soft, but solid. It reacts with hydrochloric acid like this 2 CaCO3 + 2 HCl → CO2 + CaCl2 + H2O producing Carbon Dioxide, which is what we measure in the experiment. There are different factors affecting the rate of this reaction, such
Investigating Factors that Affect the Rate of Reaction Between a Metal and an Acid Factors that may affect the experiment + fair test The variables that could affect the rate of reaction are the temperature, amount of magnesium, concentration of acid, surface area of magnesium and volume of acid. The variable I am going to change is the concentration of acid. I am going to measure how long it takes a piece of magnesium(no more than 20m in length) to react in different concentrations of
Investigating Factors Affecting Resistance of a Wire Aim --- Investigate what factors affect the resistance of wire, however in this experiment I am going to monitor how the length of a wire affects the resistance of a wire if the current is kept the same. Method ------ 1) Arrange apparatus as shown in the Diagram: 2) Cut a length of wire over a meter long and sellotape to a meter ruler. 3) Attach one positive crocodile clip to 0cm, and move the negative up/down, stopping
Investigating a Factor that Affects Enzyme Activity Planning -------- Aim --- To investigate a factor which will affect the activity of catalase, whilst keeping all variables constant. Possible Independent Variables ------------------------------ Here are a number of possible independent variables that could be changed in the experiment: Independent variable Continuous/Discontinuous Easy to measure? Volume of substrate used Continuous Yes Type
Investigating Factors that Affect the Rate of Reaction Between marble and Dilute Hydrochloric Acid The local Council are concerned about the effect of acid rain on the marble statues in the local park. Investigate a factor that affects the rate of reaction between marble (calcium carbonate) and dilute hydrochloric acid. There are three main factors that affect the rate of reaction. These are: Particle size Concentration Temperature With investigating any of these, there are
Investigating the Factors that Affect the Resistance of a Wire Aim To study the factors which affect the resistance of a wire. Background Information Although current and potential difference measure different things, they are related to each other. In 1826, Georg Ohm discovered that doubling the p.d. doubled the current. (Taken from Ohm's Law: the current flowing through a metal wire is proportional to the potential difference across it (providing the temperature is constant)
Investigating the Effects of An Abiotic Factor on the Frequency and Distribution of a Freshwater Invertebrate (i) Planning ------------ Introduction ============ Before a complex biological study can be planned and formulated, the terminology in the title above must be clarified. The investigation requires a sound knowledge of ecology, which essentially is the study of organisms, whether they be animals or insects, and their relationship with the environment in which they live
Investigating the Factors that Determine the Price of a Second Hand Car Aim Use the information to investigate what influences the price of a second hand car. Introduction I’m going to find out what it is that affects the price of a second hand car. Hypothesis I think that the main factors in the drop of car prices are the age and mileage; this is because they give us a good indication as to what the cars price and other information could be. Plan I am going to prove this
Investigating the Abiotic Factors that Affect the Size of Ivy Leaves in Shaded and Unshaded Habitats Introduction Ivy is any one of a large number of creeping or climbing vines. These vines have different botanical names, and the word ivy, as commonly used, does not belong to any one plant. It often applies to climbing vines, especially to those that are ornamental. The particular one being looked at in this experiment is the common, or English, ivy. English ivy is the plant that makes
Investigating What Factors Affect Reflection Prediction: The angle of incidence is proportional to the angle of Refraction. Angle I Angle r 10 6 20 14 30 21 40 28 50 34 60 39 70 44 80 47 Results: Angle I Angle r 10 8 20 15 30 20 40 28 50 33 60 38 70 42 80 47 Averages of both results: Angle I ======= Angle r 10 7 20 14.5 30 20.5 40 28 50 33
Investigating the Factors that Affect the Resistance of a Metal Conductor All metals offer some resistance to the flow of an electric current. Several factors affect the resistance: * Temperature * Length * Cross-section area * The metal or alloy the conductor is made of This investigation looks at the effect of length. Background Information ====================== Why does resistance occur? ========================== Resistance occurs because the electrons in
Investigating What Factors Affect the Efficiency of Siphoning I have chosen to investigate siphoning because as a kid I was always intrigued and puzzled by this "phenomena" when I used to clean my fish tank. The difficulty factor also played a major role. I wanted to do something which could be carried out comfortably in a relatively short time. An investigation, which is not so demanding on the practical side to allow more time for processing of the data captured. ===================