1. Dancing Raisins Here’s another quick and easy science experiment. All you need is a glass of clear soda‚ such as ginger ale or club soda‚ and several small raisins. Fill a glass with soda. Leave about ½ inch (12.5 mm) of space at the top. Drop the raisins in. Those tiny bubbles attaching themselves to the raisins are carbon dioxide (CO2) bubbles. The irregular surface of the raisins enables a lot of CO2 to accumulate. When enough gas bubbles attach to the raisins‚ they act like tiny balloons
Premium Water Carbonated water Distillation
solution would be a lighter shade of red‚ with 70% concentration being the darkest shade of red. When using the colorimeter‚ the lower concentrations will have a value much smaller than the higher concentrations which will have higher values closer to 2. I predict that the rate of diffusion and ethanol concentration will be directly proportional. Method Followed the instructions that were given on the sheet (Activity 2.8). Slices of beetroot were left overnight to wash away excess dye and
Premium Cell membrane Cell Lipid bilayer
In our past experiments and observations we have found that air is in fact matter we know this because air takes up volume and mass. In the beach ball demo‚ we tested the beach ball without air and the mass was 56.1 grams and then we tested it again with air and the mass equalled up to 56.3 grams. This shows us that air takes up space. In the investigation 1.2‚ we tested 3 demonstrations. And in the second demonstration In demonstration 2 the cup was put into the water‚ upside down‚ the beaker
Premium Carbon dioxide Water Oxygen
Medical Experiments of the Holocaust As a society we place those in the medical profession on a pedestal. They are people to be looked up to and admired. In many ways they are Gods‚ right here with us on earth. People put the hope and faith in doctors hoping they can perform miracles. Throughout history‚ doctors have indeed preformed many wonders. There were‚ however‚ some doctors that betrayed this belief and peoples trust. These doctors could be found in concentration camps such as Auschwitz
Premium Nazi Germany Adolf Hitler Nuremberg Trials
TITLE : Tensile Test ABSTRACT The tensile test experiment being done purposely to determine the deformation of our specimen which is low carbon steel or also called as mild steel‚ and it also to identify the fracture characteristic of the specimen based on the result that we got through the experiment. Based on the data presence from this experiment ‚we used it to calculate the stress and strain using a theoretical formula. Through all the calculation that we got‚ we construct a table and
Premium Tensile strength Elasticity
Phillip Zimbardo’s Stanford Prison Experiment: Ethical or not? Chase Clark University of Massachusetts‚ Lowell Abstract The research conducted in this paper consists of solely the Stanford Prison Experiment‚ which was originally conducted by the social psychologist‚ Phillip G. Zimbardo. This experiment replicated a real prison that took students to participate in it. Students role-played the prisoners themselves‚ and prison guards. It was conducted in the basement of the psychology department
Premium Stanford prison experiment
at a 7. After two minutes elapsed‚ I again rubbed the sandpaper gently with my right index finger. My perception of the coarseness of the sandpaper did change during this experiment. On the second trial‚ the texture of the sandpaper felt smoother to the touch. I rated the coarseness at a 4 the second time. During this experiment‚ the sensory receptors located in the nerve endings on my fingertip responded to the presented stimulus‚ recognizing the pressure of touching the sandpaper. This information
Premium Sense Sensory system Cognition
Stanford Prison Experiment P R E S E N T E D B Y: J O N AT H A N‚ V I N E E T H ‚ J A K E ‚ R O H I T The Purpose? Psychological effects of becoming a prisoner or a prison guard How would being placed in a position of power or weakness affect one’s actions and mental state? Who Was In Charge? A team of researchers led by Professor Phillip Zimbardo conducted the experiment at Stanford University on students Subjects Involved 24 male students were prison guards and prisoners in a mock
Premium Stanford prison experiment
Copper sulphate experiment Introduction There are a number of different methods of making salts‚ such as the reaction of a metal with an acid. Copper metal‚ however‚ does not react with sulphuric acid and so another method must be used. In this experiment a basic copper compound (copper(II) oxide) will be reacted with sulphuric acid giving copper(II) sulphate as one of the products. Method 1. Wear goggles and keep your face away from the beaker during the reaction 2. Place 20 cmm3 sulphuric
Premium Sulfuric acid Hydrogen Carbon dioxide
In this experiment we are going to describe stress and prove how can a prolonged exposition to it have a negative impact on memory. The definition of stress used in this experiment is: difficulty one suffers that causes worry‚ emotional tension or loss of concentration. The reason why this topic has been chosen is because stress is a part of nowadays‚ hectic society and it has a very noticeable effect on people’s performance‚ in either work or daily life. The outcome of this experiment could be
Premium Hypothesis Scientific method Null hypothesis