Abby Goldschmidt Honors Biology 2° Mrs. Gempel September 3‚ 2015 Daphnia Lab Results Paper Abstract The goal of the study was to observe the effects of multiple chemicals on a Daphnia magna’s heart-rate compared to a control (pond water). The different chemicals were caffeine and alcohol. The heart-rate was the main variable in this experiment. The Daphnia’s heart-rate was observed for 15 seconds and then multiplied by 4 to show its heart-rate in one minute. This was repeated 4 times for each
Premium Heart rate
Problem Definition “ How could the iPhone 4s be improved?” Research Objectives The aim of the research was to gain an insight into what hardware and software improvements that consumers believe should be made to the current model of the iPhone‚ the iPhone 4s. Interview Protocol Data Analysis All participants of the focus group were first asked if they own the current model of the iPhone. Three out of the five participants said that they currently own and use the iPhone 4s. The other two participants
Premium Mobile phone Smartphone
as a “battery”. Half-cells are normally produced by placing a piece of metal into a solution containing a cation of the metal (e.g.‚ Cu metal in a solution of a soluble salt that releases Cu2+ or Cu+ into solution). In this micro-version of a voltaic cell‚ the half cell will be a small piece of metal placed into three drops of a solution on a piece of filter paper. The solution contains a cation of the solid metal. Figure 1 shows the arrangement of the halfcells on the piece of filter paper. The two
Premium Electrochemistry
Conor Westerman LAB 7 1. List whether the student was positive or negative for each characteristic and include whether the characteristic is dominant or recessive. (6 points) a. Blood type A+ b. Widow’s peak yes‚ + c. Free ear lobes yes‚ + d. Tongue rolling yes‚ + e. Hitchhiker’s thumb yes‚ + f. Left thumb dominance yes‚ + g. Little finger bend No‚- h. PTC taster yes‚ + i. Mid-digit hair no‚ - j. Facial dimples yes‚ + k. Freckles no‚ - l. Cleft chin no‚ - (+)=dominant (-)=recessive 2. Can the student
Free Allele Genetics Zygosity
enough to answer the research project. Qualitative research is the use of open questions‚ allowing participants to answer with their opinions and thoughts. A researcher might use qualitative research as it provides more detailed answers which could represent a wider opinion of participants. Extra information is provided than that from quantitative research. This could mean that the information is more reliable and valid however‚ a researcher might not use qualitative research as the analysing of the data
Premium Scientific method Sampling Research
Is this a reliable source? • This is a reliable source of information. This article was published in the Journal of Child: Care‚ Health‚ and Development‚ a reputable and well-known journal. This specific journal received the following score for Impact Factor: 1.692. This journal also received the following rankings: ISI Journal Citation Reports © Ranking: 2014: 36/68 (Psychology Developmental); 50/120 (Pediatrics). The vast majority of current‚ if not all‚ research on therapeutic medical play
Premium Medicine Patient Health care
AP BIOLOGY Lab 5 Cellular Respiration Objective: To calculate the rate of CR from the data. To then relate gas production to respiration rate. Then test the rate of CR in germinating versus non-germinating seeds in a controlled experiment and then test the effect of temperature on the rate of CR in the germinating versus non-germinated seeds in a controlled experiment. Analysis: 1. The CR is higher in the germinating peas in the cold water rather than in the beads or non-germinating peas
Premium Cellular respiration Oxygen Carbon dioxide
Vinegar Titration Lab Procedure: 1.) Obtain ~100 mL of NaOH. Record the molarity on the data table. 2.) Set up a ring stand with a buret. 3.) Place 5mL of vinegar in a 125 mL Erlenmeyer flask. Dilute the vinegar with 25 mL of water and add two drops of phenolphthalein. 4.) Fill the buret with NaOH. Record the initial volume of the buret in your data table. 5.) Titrate the vinegar sample until the first faint pink color does not disappear. 6.) Record the final volume of the buret in your data
Premium Base Sodium hydroxide Titration
The refraction of light lab used common materials to examine the process of the refraction of light. The title of this lab is exactly what occurs throughout the four different experiments. All four parts of this lab use prior knowledge to observe the complex concept of refraction. Refraction is the bending of a light when it enters a medium where the speed of light is different. When light enters through the glass and water the speed of light becomes decreased. This is due to the density of water
Premium Refraction Light Total internal reflection
Lab Report: Scientific Method Your Name: Alyssa Melincoff Purpose of this Lab What is the goal of this lab? What question is it trying to answer‚ or what problem is it trying to explain? To find out how table salt affects the boiling temperature of water. Hypothesis After reading the lab instructions - but before starting the lab - record your best “educated guess” about what will happen in the experiment. What hypothesis can you generate about the effect of adding salt to water? Adding
Premium Water Scientific method Temperature