Purpose The purpose of this catalase lab is to design simple experiments to demonstrate how various factors affect the rate of enzyme activity. This lab shows how the enzyme decomposes in hydrogen peroxide. Methods and Materials Refer to handout attached to the back of lab Observations Table 1: The mL of oxygen produced with increase of catalase 30secs 60secs 90secs 120secs 150secs 180secs Disks: 2 17ml 16ml 21ml 26ml 31ml 35ml Disks: 4 8ml 19ml 27ml 35ml 44ml 53ml
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Collision Lab Simulation Purpose: To study elastic and inelastic collisions in one-dimension. Background Information: Momentum: is a measure of mass in motion. It is the product of mass x velocity. Conservation of Momentum: in the absence of external forces‚ such as friction‚ the linear momentum of a system remains constant. Procedure: 1. Open web browser and go to the site: http://phet.colorado.edu 2. Click “play with sims”‚ then “physics”‚ and then “motion” 3. Find the “Collision Lab” 4
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Student Guide Laboratory: Drop and Bounce Different matter responds differently to force. In this lab‚ you will explore the relationship between matter and energy by dropping objects made of different materials from different heights to see how high they bounce. You will be dropping these objects in a virtual lab setting where objects behave the same as they would in the real world. Goals for the Lesson Solve a problem using the scientific method. Use the metric system in a scientific experiment
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Period 1 10/14/12 Enzyme lab Enzymes are biological catalysts that speed up the process of chemical reactions. They are also proteins‚ and most enzymes activities occur within organism. They decrease activation energy‚ energy that is needed to start a chemical reaction. Enzymes are substrate specific substrates ending in "-ase"‚ enzymes ending in "-ase". External factors‚ such as temperature‚ pH‚ and concentration of the substrate‚ affect the enzymes activity in the lab‚ pectase and cellulase will
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Measurement and Density Your Name: ____________________________________________________________ __ Purpose of this Lab What is the goal of this lab? What question are you trying to answer‚ or what problem are you trying to explain? Hypothesis After reading the lab instructions - but before starting the lab - record your best “educated guess” about each experiment: Experiment 1: Which method of finding the density give you the least percent error and why? Experiment 2: After completing the
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Poor educational standards and Matriculation results in South Africa- A Case Study Introduction Poor educational standard is an issue which has been discussing globally. Matriculation is an important stage in the educational life of a student. The reason being it is a turning point or point of departure to different destinations. So utmost guidance and care must be given to students who are on that stage to get the desired outcome. Here the researcher is trying to analyse the various reasons behind
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Collisions in Two Dimensions Abstract: This lab was conducted to investigate the theories of conservation of momentum and kinetic energy in different types of 2D collisions. In order to do this‚ both an elastic and inelastic collision was conducted on an air table with pucks. A video was taken and analyzed to determine velocity‚ allowing for future finding of momentum and kinetic energy values. By finding these‚ it was possible to determine which kind of collision took place. With low values of
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Williams‚ Brandon Physics‚ Period 1 23 May‚ 2014 Resonance Lab Purpose: To determine the speed of sound using the resonance method‚ temperature method and percent error. Hypothesis: If the temperature of the room’s 20 degrees C‚ then using the temperature method‚ the speed of sound is 344m/s. Vs – Vo + 0.6m/s T / C = 332 m/s + .6 m/s (20 C) / C = 344 m/s Conclusion: Using the resonance method the speed was 330 m/s. using the average temperature
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Michael Castelli Keegan Bauman Potato Lab Dr. Peano Block 1 Introduction: Potatoes are just your average food; they have been around for as long as the human race can remember. In this lab we will make them be a prime example of osmosis‚ which is a transport mechanism. In this lab the problem being tested was what environment affects the mass of the potatoes the most. The independent variable is the environments used salt‚ water and iodine solution. The dependent variable is the mass of
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Silveira Date of Submission: September 25‚ 2013 Lab Section: CHE110L*Z Purpose The purpose of this experiment is to use two common laboratory methods to see how mixtures can be separated based on physical properties. Paper chromatography will be used to separate the dye colors from M&M candy to see which colors contain yellow #5. Gravimetric separation will be used to separate salt and sand from a mixture. Procedure The procedure for this lab can be found on pages 16 – 30 in “General Chemistry
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