for filtering of the sand. 2. Properties of sand and salt that will help separate them are that salt is water soluble, and the sand is insoluble in water. 3. The three things that could go wrong in this experiment are: * During the evaporation of water while using the Bunsen burner, the flask might crack or explode – this can be avoided by not heating the flask over a prolonged period of time, and not heating it too intensely. * Some of the sand may be lost during the filtration –
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the rain falling on the land flows into that river. The boundary of a drainage basin is the watershed, where any precipitation falling beyond the watershed enters a different drainage basin. 2) Inputs; Precipitation // Outputs; Transpiration, Evaporation, River Discharge, Evapo-transpiration 3) Interception is when some precipitation lands on vegetation or other structures such as buildings, concrete and tarmac surfaces, before it reaches the soil. Interception creates a significant store of
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Name Date Class Cycles of Matter 1. What is the source of energy for the process of evaporation? 2. What happens to rainwater that falls on land? 3. How are oxygen and carbon cycled between plants and animals? 4. Why are nitrogen-fixing bacteria so important to other organisms? 5. Which cycle is shown in the diagram above? Identify each process labeled in the diagram. 6. A 7. B 8. C 9. D 10. E
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G e o g r a p h y Chapter 9: * 70% of the freshwater goes to the agricultural sector * If lakes dried up, temperature would rise * Lack of rainfall and increased evaporation can lead to drought * Dry soil, dry air, and high winds can cause wildfires * 9 of 10 wildfires are caused by humans, lightning is the largest natural cause Chapter 10: * 70% of the earth is covered in water * Water flows in rivers, it picks up small amounts of mineral salts from the rocks
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in order to receive nourishment. Chemical properties of matter describe its “potential” to undergo some chemical change or reaction by virtue of its composition. As the beaver log burns, it goes through three phases. The first phase is the evaporation of water. As the wood is heated moisture evaporates quickly consuming heat energy in the process. The second phase is the emission of smoke. As the wood heats up, it starts to smoke. The smoke is the visible result of the destruction of the
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PROPERTIES General Physical Form: Solid Odor, Color, Grade: Opaque, white tape. Odor threshold Not Applicable pH Not Applicable Melting point Not Applicable Boiling Point Not Applicable Flash Point Not Applicable Evaporation rate Not Applicable Flammability (solid, gas) Not
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Lab 5 – Weather and Climate Change Lab 5 - Demonstration 1: Modeling the Water Cycle POST LAB QUESTIONS 1. Which water cycle processes are represented in this model and by what components? Answer = evaporation, and condensation. The warm water evaporated into water vapors, that it transformed back into a liquid state during the condensation process. 2. Which processes are not represented? How could the model be altered to include these processes?
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Demonstration 1: Modeling the Water Cycle POST LAB QUESTIONS 1. Which water cycle processes are represented in this model and by what components? Answer = the water processes that are represented in this model are condensation and evaporation. Condensation occurs under the lid of the jar. Some of the water in the jar evaporated. 2. Which processes are not represented? How could the model be altered to include these processes? Answer = Infiltration, Surface run-off
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Impurities are substances inside a confined amount of liquid, gas, or solid, which differ from the chemical composition of the material or compound.Impurities are either naturally occurring or added during synthesis of a chemical or commercial product. During production, impurities may be purposely, accidentally, inevitably, or incidentally added into the substance An interfering agent is a thing added to a sugar syrup to prevent crystallization. Coat is naturally the skin of humans and animals
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Significance of Humidity The amount of water vapor in air effectively controls the weather condition by controlling evapotranspiration from land and water surfaces. Evaporation rate is proportional to difference between saturated vapor pressure at water temperature (ew) and actual vapor pressure in air (ea). EL = C (ew – ea), Where, EL is lake evaporation rate, C is a constant of proportionality. Causes of Humidity Molecules of water having sufficient kinetic energy to overcome attractive forces tending to
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