Learn About Separating Mixtures
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Sorting is
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Using a sieve to remove particles
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Dissolving the mixture to remove particles
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Physically removing particles
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Heating to remove particles
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Explore the fundamentals of separating mixtures through this engaging quiz. Learn techniques like sorting, dissolving, and using sieves to handle complex mixtures and recycling processes, enhancing practical understanding relevant for academic and environmental applications.
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Complex mixture is made of
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Combination of mechanical mixtures and solutions
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Mechanical mixture
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Insoluble
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Two solutions
Correct Answer
A. Combination of mechanical mixtures and solutionsExplanation
A complex mixture is composed of a combination of mechanical mixtures and solutions. This means that it contains both substances that are physically mixed together but remain separate, as well as substances that are dissolved in a solvent. The mechanical mixture refers to the presence of insoluble components that can be easily separated, while the solutions refer to the presence of soluble components that are evenly distributed throughout the mixture. Therefore, a complex mixture is a heterogeneous combination of both mechanical mixtures and solutions.Rate this question:
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- 3.
Recycling plants use magnets to remove
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Plastics
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Metal
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Paper
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Styrofoam
Correct Answer
A. MetalExplanation
Recycling plants use magnets to remove metal because magnets are attracted to materials that contain iron or other magnetic metals. By using magnets, recycling plants can easily separate metal items from other materials, such as plastics, paper, and styrofoam, making the recycling process more efficient. This allows the metal to be recycled separately and prevents it from contaminating other materials.Rate this question:
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- 4.
To separate pepper from salt, you could use
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Sieve and sorting
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Magnet
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Dissolving in water and filter
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Oil
Correct Answer
A. Dissolving in water and filterExplanation
To separate pepper from salt, one can dissolve the mixture in water. Salt is soluble in water, while pepper is not. By dissolving the mixture, the salt will dissolve, leaving the pepper behind. Then, the solution can be filtered to separate the dissolved salt from the pepper. This method exploits the difference in solubility between the two substances, allowing for an effective separation.Rate this question:
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- 5.
When treating water at the sewage treatment plant. What would be the best choice to remove large branches
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Sorting
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Sieve
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Filter
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Settling
Correct Answer
A. SieveExplanation
A sieve would be the best choice to remove large branches when treating water at the sewage treatment plant. A sieve is a device with small holes or mesh that allows smaller particles to pass through while trapping larger objects. In this case, the sieve would effectively separate and remove the large branches from the water, ensuring that they do not interfere with the treatment process or cause any blockages further downstream.Rate this question:
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- 6.
What would be the best way to remove oil and sludge from water at the treatment plant?
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Floating
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Settling
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Sorting
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Magnet
Correct Answer
A. FloatingExplanation
The best way to remove oil and sludge from water at the treatment plant would be through the process of floating. This method involves allowing the oil and sludge to rise to the surface of the water, where it can be skimmed off or collected using specialized equipment. Floating is effective because oil and sludge have a lower density than water, causing them to naturally separate and float on top. This allows for easy removal and helps to ensure that the treated water is clean and free from contaminants.Rate this question:
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- 7.
How can you separate blood (a complex mixture) into its parts quickly?
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Let it sit and settle
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Filter
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Floating and settling
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Centrifuge machine
Correct Answer
A. Centrifuge machineExplanation
A centrifuge machine can separate blood into its parts quickly because it uses centrifugal force to spin the blood at high speeds. This force causes the heavier components, such as red blood cells, to settle at the bottom while the lighter components, such as plasma, rise to the top. This separation process is efficient and allows for the quick isolation of different blood components for further analysis or use in medical procedures.Rate this question:
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Quiz Review Timeline (Updated): Mar 22, 2023 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Jan 23, 2017Quiz Created by
Chiling
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