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Introduction To Matter

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. In physical science - an atom's central region - which is made up of protons and neutrons.






2. The sum of the numbers of protons and neutrons in the nucleus of an atom.






3. A characteristic of a substance that does not involve a chemical change - such as density - color - or hardness.






4. A unit of mass that describes the mass of an atom or molecule






5. The state of matter in which the volume and shape of a substance are fixed.






6. The ratio of the mass of a substance to the volume of the substance






7. The physical forms of matter - which are solid - liquid - gas - and plasma.






8. The smallest unit of an element that maintains the properties of that element






9. A homogeneous mixture throughout which two or more substances are uniformly dispersed.






10. A change that occurs when one or more substances change into entirely new substances with different properties






11. The force that acts on the surface of a liquid and that tends to minimize the area of the surface.






12. The amount of force exerted per unit area of a surface.






13. One of the elements of group 17 of the periodic table






14. One of the elements of Group 18 of the periodic table (helium - neon - argon - krypton - xenon - and radon); noble gases are unreactive.






15. The conversion of a liquid to a vapor when the vapor pressure of the liquid equals the atmospheric pressure






16. The tendency of an object to resist being moved or - if the object is moving - to resist a change in speed or direction until an outside force acts on the object






17. A sample of matter - either a single element or a single compound - that has definite chemical and physical properties.






18. An element that conducts heat and electricity poorly and that does not form positive ions in an electrolytic solution.






19. The mass of an atom expressed in atomic mass units






20. The resistance of a gas or liquid to flow.






21. A nerve cell that is specialized to receive and conduct electrical impulses.






22. The change of a substance from a liquid to a gas






23. A mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas.






24. An element that is shiny and that conducts heat and electricity well.






25. A substance made up of atoms of two or more different elements joined by chemical bonds






26. Elements that have properties of both metals and nonmetals; sometimes referred to as semiconductors.






27. One of the elements of group 2 of the periodic table






28. A region around the nucleus of an atom where electrons are likely to be found






29. The number of protons in the nucleus of an atom; the atomic number is the same for all atoms of an element






30. An atom that has the same number of protons (or the same atomic number) as other atoms of teh same element do but that has a different number of neutrons (and thus a different atomic mass)






31. Anything that has mass and takes up space.






32. The change of a substance from one physical state to another






33. A measure of the amount of matter in an object; a fundamental property of an object that is not affected by the forces that act on the object - such as the gravitational force.






34. The curve at a liquid's surface by which one measures the volume of the liquid.






35. A vertical column of elements in the periodic table; elements in a group share chemical properties






36. A unit of geologic time that is longer than an epoch but shorter than an era.






37. A change of matter from one form to another without a change in chemical properties.






38. The law that states that the volume of a gas is inversely proportional to the pressure of a gas when temperature is constant

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39. A property of matter that describes a substances ability to participate in chemical reactions






40. A mixture consisting of tiny particles that are intermediate in size between those in solutions and those in suspensions and that are suspended in liquid - solid - or gas






41. Describes something that occurs or repeats at regular intervals.






42. One of the elements of Group 1 of the periodic table






43. A measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe.






44. In a solution - the substance in which the solute dissolves.






45. The ability of one substance to dissolve in another at a given temperature and pressure; expressed in terms of the amount of solute that will dissolve in a given amount of solvent to produce a saturated solution.






46. A subatomic particle that has a negative charge






47. The law that states that the volume of a gas is directly proportional to the temperature of a gas when pressure is constant

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48. The amount of a particular substance in a given quantity of a mixture - solution - or ore






49. The state of matter that has a definite volume but not a definite shape






50. A measure of how hot (or cold) something is; specifically - a measure of the average kinetic energy of the particles in an object.







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