Q: What can be used to mechanically separate the two elements by attracting the iron filings out of the mixture and leaving the sulfur behind? Read this paragraph and choose the correct option from the provided answers: When iron filings and sulfur powder are mixed together in any ratio, they form a mixture. No chemical reaction occurs, and both elements retain their individual properties. A magnet can be used to mechanically separate the two elements by attracting the iron filings out of the mixture and leaving the sulfur behind. Choices: - centrifuge - laser - graduated cylinder - magnet A:
magnet
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Q: The iconic gray mantle of the human brain, which appears to make up most of the mass of the brain, is called? Read this paragraph and choose the correct option from the provided answers: The Cerebrum The iconic gray mantle of the human brain, which appears to make up most of the mass of the brain, is the cerebrum (Figure 13.6). The wrinkled portion is the cerebral cortex, and the rest of the structure is beneath that outer covering. There is a large separation between the two sides of the cerebrum called the longitudinal fissure. It separates the cerebrum into two distinct halves, a right and left cerebral hemisphere. Deep within the cerebrum, the white matter of the corpus callosum provides the major pathway for communication between the two hemispheres of the cerebral cortex. Choices: - brain stem - lobes - thrombus - cerebrum A:
cerebrum
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Q: Generators convert mechanical energy to which kind? Read this paragraph and choose the correct option from the provided answers: Generators and motors are almost identical in construction but convert energy in opposite directions. Generators convert mechanical energy to electrical energy and motors convert electrical energy to mechanical. Choices: - kinetic - radiation - static - electrical A:
electrical
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Q: What do you call a mixture of two or more substances in which dissolved particles are distributed evenly throughout? Read this paragraph and choose the correct option from the provided answers: A solution is a mixture of two or more substances in which dissolved particles are distributed evenly throughout the solution. The substance that dissolves in a solution is called the solute, and the substance that does the dissolving is called the solvent. The concentration of a solution is the amount of solute in a given amount of solution. A solution with a lot of dissolved solute has a high concentration and is called a concentrated solution. A solution with little dissolved solute has a low concentration and is called a dilute solution. Choices: - concentrate - liquid - water - solution A:
solution
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