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Unconformity: a contact between two rock formations often recorded by a change in the angle of dip of the beds, representing a considerable break in continuity, and time. The understanding of unconformities can be a catalyst to a geologists comprehension of the true extent of geological...
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Introduction When you submerge a plant cell in water, water flows through the cell wall and cell surface area into the vacuole from the outside. As a result, the cell swells up, but does not burst. This is because the cell wall stops the cell expanding too much. When...
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An investigation into how the amount of oxygen is produced by changing one variable effects the decomposition of Hydrogen Peroxide in the presence of the enzyme. Hydrogen peroxide Water + Oxygen 2 H2O2 2H2O + O2 This shows us that when the H2O2 has reacted with the...
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Introduction Photosynthesis is a process where plants make glucose food using sunlight as an energy source. The word equation for photosynthesis is Carbon dioxide + water glucose + oxygen Chemical is 6co g + 6h 0L c6h o L The factors that affect the...
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Aim: I am going to investigate how different surface areas, and therefore enzyme concentration, of the same volume of potato affects rate of reaction, when placed in 10ml hydrogen peroxide. Prediction: As the surface area increases, so do the amount of enzymes, which are biological catalysts that...
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Aim: To investigate the effect of different concentrations of heavy metal chloride on the growth of cress seedlings. Heavy metals like zinc, mercury, lead and cadmium are found in many places or items of everyday use. For example, mercury is found in batteries, cadmium in paints and lead is...
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Scientific Back round: Osmosis is defined as the net movement of water or any other solution's molecules from a region in which they are highly concentrated to a region in which they are less concentrated. This movement must take place across a partially permeable membrane such as...
Words: 1178 View(s): 40 Comment(s): 0
Hypothesis: The higher level of concentration of the sugar solution, the greater reduction of the potato cylinder will be. Prediction: I think that the higher the concentration of the sugar solution, the bigger the length difference will be. This will be because the water molecules will flow out of...
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Specific Purpose – To persuade my audience that animal testing is wrong and how other safer alternatives should be taken. Central Idea – By going the extra mile in using safer alternatives when experimenting with animals will not only prevent conflicts from pro-life activists, it will minimize lawsuits and morals...
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The digestive system is used to break down the food that we eat. It is made up of many different organs like the oesophagus, stomach, intestines etc… Digestion starts when food is taken into the mouth. This is called ingestion. The teeth are used to break the food into...
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