Question Answer NAME EXERCISE #1 Examine the table. Based on the information in Table 2‚ what patters do you observe? Develop a hypothesis related to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water. What would your experimental approach be to test this hypothesis? What would your experimental approach to be to test this hypothesis? What are the independent and dependent variables? What would
Premium Hypothesis Scientific method Observation
Lab Report An enzyme is a protein that speeds up the rates of chemical reactions. They recognize‚ bind‚ and change specific reactants. They do not change so they can catalyze the same reaction again and again. Activation energy is the amount of energy needed in order to begin a chemical reaction. A Catalyst is a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change. Catalysts are substances or a substance that configures another substance
Premium Chemical reaction Chemistry Catalysis
CE121: Construction Materials Laboratory Report No. 1 Particle Size Distribution Van Joseph E. Casalme 2010-14928‚ BS Civil Engineering Institute of Civil Engineering‚ College of Engineering University of the Philippines Diliman‚ Diliman Quezon City 1101 Submitted to: Engr. Christian R. Orozco ABSTRACT This test (ASTM C136-06) determines the grading of materials being used as aggregates using two parameters (coefficient of uniformity and gradation) from particle-size distribution
Premium Sieve analysis Particle size distribution Construction aggregate
which neutralizes it. When using the buret the amount of NaOH used is able to be determined. Then by writing a balanced chemical equation and using the titration formula‚ Nb+Ma+Va=Na+MbVb ‚ the molarity is able to be determined. Procedure: 1) Using the graduated cylinder add 10.0 mL of water into the Erlenmeyer flask. 2) Add 5.0 mL of HCl into the flask using another graduated cylinder because acid goes into water when mixing them. 3) Add three drops of phenolphthalein indicator into the
Premium Titration Sodium hydroxide Acid
Nervous System lab was designed to measure reaction times by using a variety of tests that affect the heart rate. These tests were the startle‚ stroop‚ Valsalva maneuver‚ diving reflex‚ and a test of our choice. The test our group chose to measure the heart rate in response to doing a trust fall to anticipate the stress right before the fall. To begin this lab we chose a participant‚ and then hooked their finger up to the pulse transducer sensor. Using the chart 5 program on the lab computer the participant’s
Premium Parasympathetic nervous system Autonomic nervous system Peripheral nervous system
Exercise 2: Skeletal Muscle Physiology: Activity 1: The Muscle Twitch and the Latent Period Lab Report Pre-lab Quiz Results You scored 20% by answering 1 out of 5 questions correctly. 1. Skeletal muscles are connected to bones by Your answer : c. ligaments. Correct answer: b. tendons. 2. Skeletal muscles are composed of hundreds to thousands of individual cells called Your answer : b. myofibrils. Correct answer: c. fibers. 3. The term motor unit refers to Your answer : b. all of the activated muscle
Premium Neuromuscular junction Skeletal muscle Acetylcholine
Introduction: During this unknown lab report various test were performed to differentiate microbes from each other and to compare metabolic and biochemical process. The gram stain distinguishes between Gram positive and Gram negative bacteria based on the composition of the cell wall. The Gram stain procedure distinguishes between Gram positive and Gram negative groups by coloring these cells red or violet. Gram positive bacteria stain violet due to the presence of a thick layer of peptidoglycan
Premium Bacteria Adenosine triphosphate
Solute Concentration of Potatoes Lab #1 Purpose: To find the molarity/concentration of potato cytoplasm. Materials: As on page 1 in the lab handout. Procedure: As on page 1 in the lab handout. Data and Observations: Test Tube # | Concentration of sucrose solution (mol/L) | Initial Mass (g) | Final Mass | Percentage change in mass | 1 | 1.0 mol/L | 3.00g | 2.25g | -25.0% | 2 | 0.9 mol/L | 2.70g | 2.07g | -23.3% | 3 | 0.8 mol/L | 2.92g | 2.25g | -22.9% | 4 | 0.7 mol/L | 2.60g
Premium Concentration Osmosis Chemistry
Exercise 1. Upgrading TO: Valerie Bernier‚ Dentist RE: Can I upgrade the office? Hello Dr. Bernier‚ I am happy to help out with your question. From the information you have given me about the workstations‚ i’m sure that your machines meet the minimum requirements for a Windows 7 Professional install. Unfortunately‚ an upgrade from Windows XP to Windows 7 Professional isn’t possible without performing a clean install. Only a Windows Vista can be upgraded to Windows 7 Professional without having
Premium Windows 2000 Microsoft Windows Vista
Lab Report – Strong Example Problem/Question Does using a base coat before painting nails prevent chipping? Background Information When painting nails‚ some manicurists use a base coat before applying the polish. The purpose of a base coat is to help the polish stick to your nails more easily. Base coats also help to protect your natural nail from the staining effects of colored polishes. Ridge-filling base coats fill in the grooves and cracks in the nail to create a smoother appearance
Premium Left-handedness French Revolution Handedness