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Introduction To Matter

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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






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






3. 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.






4. In physical science - an atom's central region - which is made up of protons and neutrons.






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






6. A subatomic particle that has a positive charge and that is located in the nucleus of an atom; the number of protons in the nucleus is the atomic number - which determines the identity of an element.






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






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






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






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






11. 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.






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






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






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






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






16. 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)






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






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






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






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






21. A combination of two or more substances that are not chemically combined.






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






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






24. A subatomic particle that has a negative charge






25. 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






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






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






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






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






30. The change of state in which a solid becomes a liquid by adding heat or changing pressure.






31. 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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32. A from of matter that does not have a definite volume or shape






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






34. The process in which a solid changes directly into a gas (the term is sometimes also used for the reverse process).






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






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






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






39. A measure of the size or region in three-dimensional space.






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






41. The change of state from a gas to a liquid






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






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






44. Anything that has mass and takes up space.






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






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






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






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






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






50. 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







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