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ACT Science Exam With Questions And Real Answers
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ACT Science Exam With Questions And Real Answers Atria - Answer Upper chambers of the heart Base - Answer A substance that decreases the hydrogen ion concentration in a solution. Calibration - Answer Any procedure used to evaluate the accuracy of a measurement system and, when sources of error are found, to use that information to correct or improve the measuring sy stem Capillaries - Answer Microscopic vessel through which exchanges take place between t he blood and cells of the body Catalyst - Answer (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected Celestial Equator - Answer An imaginary circle created by extending Earth's equator into space Celestial poles - Answer Projection of Earth's North and South Poles onto the celestial sphere. Creates North and South celestial pole. Celestial sphere - Answer An imaginary sphere surrounding Earth to which the stars are attached Cell membrane - Answer A cell structure that controls which substances can enter or leave the cell. Cell wall - Answer A rigid layer of nonliving material that surrounds the cells of plants an d some other organisms. Centripetal force - Answer An attitude that tends to unify people and enhance support for a state Chemical change - Answer A change in matter that produces one or more new substances Chromosome - Answer A threadlike, gene-carrying structure found in the nucleus. Each chromosome consists of one very long DNA molecule and associated proteins. Component - Answer A part or element of a larger whole. Compound - Answer A substance made up of atoms of two or more different elements joined by chemical bonds Concentration - Answer A measurement of how much solute exists within a certain volume of sol vent Conclusion - Answer A _____ at the end of a DBQ essay is not required for points but it can be used t o help reiterate your thesis or perhaps to get certain expanded core points. Constellation - Answer A group of stars that form a pattern in the sky Continental Rift - Answer A linear belt along which continental lithosphere stretches and pulls apart Convergent Boundary - Answer A plate boundary where two plates move toward each other. Cosmology - Answer study of the universe Crystal - Answer An orderly, three-dimensional pattern of ions or atoms in a solid Current - Answer A flow of electric charge. Cuticle - Answer A waxy covering on the surface of stems and leaves that acts as an adaptation to prevent desiccation in terrestrial plants. Cytoplasm - Answer A jellylike fluid inside the cell in which the organelles are suspended Cytoskeleton - Answer A network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement Decibel - Answer a logarithmic unit of sound intensity Declination - Answer A measure of how far north or south an object is from the celestial equato r Delta - Answer A landform made of sediment that is deposited where a river flows into an ocean o r lake Density - Answer Mass / Volume Dispalcement - Answer Basic types of vessel hulls Divergent boundary - Answer A plate boundary where two plates move away from each other. DNA - Answer A complex molecule containing the genetic information that makes up the chromosomes. Ecliptic - Answer path of the sun and the planets Electric potential energy - Answer Energy a charge has due to its location in an electric field Electromagnetic Wave - Answer A form of energy that can move through the vacuum of space. Electrostatic force - Answer The force between electrically charged objects (like charges repel and opposite charges attract each other). Element - Answer A pure substance made of only one kind of atom Ellipse - Answer A regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points is constant, or resulting when a cone is cut by an oblique plane which does not intersect the base. Endoplasmic Reticulum - Answer A cell structure that forms a maze of passageways in which proteinsThe benefits of buying summaries with Stuvia:
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