Mint and Garlic Practical Aim: The aim of this experiment was to investigate into the antibacterial properties of some plants. Variables: Independent Variable: Type of plant used Dependant Variable: The diameter in cm of clearing Confounding Variables: Room temperature Surrounding bacteria Concentration of plant solution Volume of plant solution Safety Precautions No food or drink was to be consumed during the experiment as we were using living bacteria which could
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01/03/2012 SOIL COMPOSITION SOIL COMPOSITION Generally soil can be divided to three components in natural occurrence This separation know as three phase systems or three phase diagram It consists of soil solids‚ water and air 1 01/03/2012 Soil components in natural occurrence Volume-Weight relationships As a result from 3 phase diagram several relationship were produce This relationship known as volume weight relationships. Refer to 3 phase diagram 2 01/03/2012
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EXPERIMENT 4B: THE MENDELEEV LAB OF 1869 Materials: 30 element cards‚ periodic table Aim: How can we identify elements based on their propeties? Background: Russian chemist Dmitri Mendeleev is generally credited as being the first chemist to observe patterns emerge when the elements are arranged according to their properties. Mendeleev’s arrangement of the elements was unique because he left blank spaces for elements that he claimed were undiscovered as of 1869. Mendeleev was so confident
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MOSK GIVES US MOORE OF AN IDEA ABOUT PROPERTY Contents MOSK GIVES US MOORE OF AN IDEA ABOUT PROPERTY 2 INTRODUCTION 3 PROPERTY DEFINITION 4 ADAPTABILITY 5 LEGISLATIVE GUIDANCE 6 ETHICS AND EQUITY 7 WEAKNESSES OR STRENGTHS? 10 POST ‘MOORE’TEM 13 CONCLUSION 14 INTRODUCTION The question of property rights in human tissue has traditionally been relevant in matters concerning dead bodies. However‚ with the rise of Biotechnology human tissue storage is increasing rapidly
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Lab: investigating hooked law with springs Purpose: to find spring constants of different springs using the slope of a graph of change in heights vs. the weight force. Also‚ to be able to understand how spring constants change when you add springs in a series or paralle Pre lab predictions: We predicted that the graph of gravitational force (mg) as a function of stretch (delta x) would look like Data: Spring #1: y = 8.2941x + 0.0685 This table represents the different distances that
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removes harmful materials from exhaust gases before they are released into the environment or atmosphere. There are two types of scrubbing methods. There is wet and dry scrubbing. Both systems work in similar ways and have the same end result. That is to change a toxic chemical into something less toxic or non-toxic. Now scrubber systems rely on a chemical reaction with a sorbent (which is a material that sorbs another substance or A substance that has the property of collecting molecules of another
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Surface Tension Properties of Liquids Introduction The purpose of this experiment is to measure and record the surface tension of water and other aqueous solutions using capillary rise method techniques and practicing lab safety. In this laboratory the surface tension of water depends on the concentration of the following solutes; NaCl‚ acetone‚ and sodium dodecyl sulfate (SDS). Intermolecular interactions as well as other phases (solid‚ or air) make a liquid exist. The data collected will show
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Electromagnetic radiation Electromagnetic radiation (EM radiation or EMR) is one of the fundamental phenomena of electromagnetism‚ propagating and traveling through space via photon wave particles‚ carrying radiant energy. In a vacuum‚ it propagates at a characteristic speed‚ the speed of light‚ normally in straight lines. EMR is emitted and absorbed by charged particles. As an electromagnetic wave‚ it has both electric and magnetic field components‚ which oscillate in a fixed relationship to one
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Quiz 6 Key 1. Neither N2 nor O2 are greenhouse gases because A. N2 and O2 react with one another‚ producing N2O2 when exposed to infrared radiation. B. their overall electric charge distribution does not change when they vibrate. C. infrared radiation causes their bonds to break. D. their atmospheric concentrations are not changed by human activity. Remember that greenhouse gases have a change in bond structure when interacting with infrared radiation. 2. Find the molar mass of ethanol
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Life is a blessing. Life is a gift. Life indeed is a tour‚ and it is God‚ who acts as our own tour guide. Many have considered life as a gift‚ a gift from the Almighty Creator that all of us must be thankful of. Life is a gift that we should appreciate‚ respect‚ and took good care of. We should also be thankful to our parents because‚ they become the instruments of God to give us life here on earth and to let us experience different things.I still remember the quote that says‚ you have to live
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