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Controll experiment

Now I will use these values and try to make a graph of it with velocity against mass. The graphs show the best straight-line gradient, the max gradient is and the min gradient is. The range of gradient is: Half the range of gradient, I find the uncertainty in the best straight line , which means a gradient with an […]

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Critically Evaluate the Contribution of Experiments

Brown (1996, p44) provides a utilitarian definition of groups which goes to the heart of the experimental perspective on groups: “We define an aggregate of people as a group if we can discern two aspects. First, that individuals think of themselves as group members who experience a sense of belongingness and a common sense of […]

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Investigation into the U-Values of Different Materials

The aim of this investigation is to compare the U-values given off by conductors of different materials. The U-value for any specified heat conductor is the heat energy lost per second through the conductor per square metre when there is a temperature difference of 1�c between its surfaces. FAIR TEST: * I must have equal […]

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How much Iron (II) in 100 grams of Spinach Oleracea?

The factors that I am going to investigated in this experiment include finding the best method to determine the concentration of an Iron (II) Ammonium Sulphate (aq) by trying colorimetry, an electrochemical cells experiment and a redox titration with Potassium Manganate (aq). After this I will extract Iron (II) from Spinach Oleracea using various methods […]

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Identification of an organic unknown

In this chemistry coursework, I am supplied with an unknown organic compound containing one of the following functional group: * Alkene * Primary alcohol * Tertiary alcohol * Aldehyde * Ketone * Carboxylic Acid * Ester * Phenol I am going to outline a sequence of simple chemical test that I could use to identify […]

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Definitions from the ‘Dictionary Of Science’

Convection- heat energy transfer that involves the movement of a fluid (gas or liquid). According to the kinetic theory, molecules of fluid in contact with the source of heat expand and tend to rise within the bulk of the fluid. Less energetic, cooler molecules sink to take their place, setting up convection currents. This is […]

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The investigation is aiming to look at transpiration

The investigation is aiming to look at transpiration. A range of different conditions will be used to determine the rate of transpiration in different plants {xerophytes and mesophytes}. I will also be comparing the rate of transpiration in xerophytes and mesophytes. PREDICTION The rate of transpiration in mesophyte will be higher than that in xerophytes. […]

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Mung bean lab report – examining the effect of light on growth

First shred a large amount of paper towel into Quarter-sized pieces. Fill each bottle with the paper towel shreds until they are about one-sixth of the way full. Slowly and carefully fill each bottle with water until each piece of paper towel is wet. Make sure the paper towels don’t clump together in the bottle. […]

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What are the best conditions for the germination of mung beans? 

Purpose: To determine the optimum temperature mung beans germinate at Hypothesis: The mung beans placed at 27�C will germinate more efficiently (in terms of number of beans germinated after a set time frame) in comparison to beans placed at other temperatures. Reason: In Asia, bean sprouts put in Chinese cuisine (which come from the mung […]

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