in the Mentos and Diet Coke. The structure of the Mentos allow carbon dioxide bubbles to form extremely rapidly. When this happens‚ you get the physical reaction of the coke exploding out of the bottle. Other carbonated drinks also work with this experiment. (Hiskey) One thing that contribute to this explosion is the structure of the Mentos. Mentos are fairly dense and sink rapidly‚ quickly creating bubbles that seed further
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General Lab Safety Experiment 1: Neutralization of Acids and Bases In this experiment‚ you will learn how to properly neutralize and dispose of acidic and basic solutions. Materials 5 mL 4.5% Acetic Acid (vinegar)‚ C2H4O2 2 Pipettes (1) 250 mL Beaker 0.5 g Sodium Bicarbonate (baking soda)‚ NaHCO3 (1) 10 mL Graduated Cylinder 2 Weigh Boats (1) 100 mL Graduated Cylinder *Water 8 Litmus Test Strips (Neutral) Permanent Marker *You Must Provide Procedure 1. Use the permanent marker to label
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Crater Design Experiment Aim: To see how the height in which the ball is dropped from affects the depth of the crater. Hypothesis: I predict that as the height in which the ball is dropped from increases‚ so does the depth of the crater (the data will be directly proportional). The scientific knowledge which supports this is that the golf ball has a gravitational potential energy which increases as the ball is dropped from higher heights. When the height increases the ball gains more gravitational
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In our society‚ there are many social norms we are expected to abide by. These unwritten rules and standards of behavior often go unnoticed‚ leaving society to take them for granted. We only become truly aware of the norms of society when they are actually violated. When a violation occurs‚ those who continue to conform may respond with positive or negative sanctions‚ such as humor‚ alarm‚ irritation‚ fear‚ or a wide variety of emotions. Our society also relies on language as its major bases for
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Bag to test several (at least 3) household items including household cleaning products with bromothymol blue. Rinse the pipet well before using it on the next household chemical. When finished with this experiment rinse the pipet well and return it to the Auxiliary Bag for use in future experiments. Name the items tested and record their results. Household Chemicals|Well No.|Observations of the Reaction| Tide Detergent|G12 |Light greenish - neutral| Glass Plus (generic Windex)|E12 |Blue –
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In the short story ‘The loaded dog’ the plot concerns 3 gold miners and their dog‚ and the farcical consequences of leaving a bomb cartridge unattended. Henry Lawson shows language features such as adjectives‚ verbs‚ and dialogue‚ metaphors‚ similes‚ humour and graphic descriptions. This story is written in third person. The language used is colloquial and idiomatic‚ for example when he uses the line ‘your dorg’s run orf inter the srub’. Some examples of adjectives he uses in the short story are
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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
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Organic Chemistry Experiment - Hydrocarbons Thursday‚ April 12‚ 2007 1:34 PM Purpose: To Identify an unknown Hydrocarbon Procedure: Procedure listed in handout "Organic Chemistry Experiment -- Hydrocarbons" Hazards: Open flame and hydrocarbons are flammable. Equations: 1. . 3. . 4. . 5. . Unknown #: 1B s-6 Hyd-3 (colorless liquid) Data/Observations: Test Bromine addition Alkane Mixture of hexane and dichloromethane was originally clear liquid. After adding 3 drops red color Br2/CH2Cl
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EXPERIMENT 5 TRANSVERSE STANDING WAVES A string attached to a turning fork is set vibrating at the same frequency as the tuning fork. The length and tension in the string are adjusted until standing waves are observed on the string. By knowing the tension in the string and the wavelength of the standing waves‚ the frequency of oscillation of the string and thus‚ the tuning fork is found. This value is then compared to a strobelight determination of the frequency. THEORY
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gradient with the help of energy input and specific transport proteins (Campbell and Reece‚ 2002). For the analysis of cell membrane permeability and the mechanism of controlling water‚ human red blood cell is a convenient specimen through hemolysis experiments ^^^^^. The human RBC osmotic content is about 0.9% NaCl. In hypotonic solutions‚ the cells swell because of water influx and eventually they hemolyze where cell contents including hemoglobin are released into the medium. This can be indicated by
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