MATTER 1

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Across
  1. 5. energy released during an nuclear reaction
  2. 6. The process of changing from a solid to a gas, or from a gas to a solid, without passing through an intermediate liquid phase
  3. 8. positive electrode in an electrolytic cell, toward which negatively charged particles are attracted
  4. 10. The force with which an object near the Earth or another celestial body is attracted toward the center of the body by gravity
  5. 15. A group of two or more atoms linked together by sharing electrons in a chemical bond
  6. 21. Any of the forms, recurring in cycles
  7. 22. A chemical bond formed between two ions with opposite charges
  8. 25. Relating to a solution that is unable to dissolve more of a solute
  9. 26. The continuance of a physical quantity, such as mass, in the same amount during a physical or chemical change
  10. 27. One of two or more atoms that have the same number of protons but a different number of neutrons
  11. 29. Any of the various reddish-brown oxides of iron that form on iron and many of its alloys when they are exposed to oxygen in the presence of moisture
  12. 30. A table in which the chemical elements are arranged in order of increasing atomic number
  13. 31. The force of attraction that holds molecules of a given substance together
  14. 34. A release of matter or energy, especially electrical energy
  15. 35. An atom or a group of atoms that has an electric charge A chemical bond formed between two ions with opposite charges
  16. 37. Energy in the form of electromagnetic waves or streams of particles such as photons or electrons
  17. 41. The transfer of heat energy through liquids and gases by the movement of molecules
  18. 45. instrument used to measure temperature
  19. 46. colorless, odorless gas that is present in the atmosphere and is formed when any fuel containing carbon is burned
  20. 49. Capable of being dissolved
  21. 52. Water droplets that condense from the air on cool surfaces
  22. 54. A measure of the amount of matter contained in a physical body
  23. 56. The smallest unit of an element, consisting of protons and neutrons in a dense central nucleus
  24. 57. describing an object by senses
  25. 59. number of protons in the nucleus of an atom
  26. 60. substance made up of two or more elements joined by chemical bonds into a molecule
  27. 63. A substance that cannot be broken down into simpler substances by chemical means
  28. 64. A deposit of tiny ice crystals on a surface
  29. 66. A class of compounds that contain hydroxyl ions and are capable of neutralizing acids in solution
  30. 71. To make a substance less concentrated by adding a liquid such as water
  31. 73. A stable subatomic particle that has a positive electric charge and is part of the nucleus of an atom
  32. 74. average mass of a chemical element
  33. 75. To change from a liquid to a gas by heating
  34. 79. An increase in size, volume, or quantity, usually due to heating
  35. 80. One of the three basic forms of matter, composed of molecules that have little or no ability to exchange places with a fixed shape
  36. 82. One of the three basic forms of matter, composed of molecules that can move short distances, takes the shape of its container
  37. 84. A measure of the compactness of a substance
  38. 85. A measure of the average kinetic energy of atoms or molecules (how hot or cold)
  39. 86. A nonmetallic element that makes up about 78 percent of the atmosphere by volume, occurring as a colorless, odorless gas
  40. 87. Amount out of 100
  41. 89. An instrument used to measure the density of a liquid as compared to that of water
  42. 90. composition of two or more substances that are not chemically combined with each other and are capable of being separated
  43. 91. A stable subatomic particle with a negative electric charge
  44. 92. one of the principal conditions in which matter exists
  45. 95. Having the electric charge of an electron
  46. 97. A material or an object that conducts heat, electricity, light, or sound
  47. 98. To remain suspended within or on the surface of a liquid without sinking
  48. 99. change from a solid to a liquid by heating or being heated to the melting point
  49. 100. Any of the six gases helium, neon, argon, krypton, xenon and radon
Down
  1. 1. properties that have a number
  2. 2. A proton or neutron especially as part of an atomic nucleus
  3. 3. The temperature at which a liquid becomes a solid
  4. 4. The flow of energy through a substance
  5. 7. something that occupies space and has mass
  6. 9. movement of ions or molecules from an area of higher concentration to an area of lower concentration
  7. 11. Any of a group of soft metals that form alkali solutions when they combine with water
  8. 12. changing from a gas to a liquid by removing heat
  9. 13. A substance, such as air or water, in which the atoms or molecules can freely move past one another
  10. 14. A colorless, odorless, highly flammable gaseous element that is the lightest and most abundant element in the universe
  11. 16. The temperature that a liquid changes to a vapor or gas
  12. 17. Chemical that acts like a base and reacts strongly with acids
  13. 18. The gaseous state of a substance that is liquid at room temperature
  14. 19. A set of symbols showing the composition of a chemical compound
  15. 20. The amount of a particular substance in a given amount of another substance
  16. 23. A force of attraction that holds atoms or ions together in a molecule or crystal
  17. 24. To pass or cause to pass into solution
  18. 28. The scientific study of the structure, properties, and reactions of the chemical elements and the compounds they form
  19. 32. An electrically neutral subatomic particle that is part of the nucleus of an atom and has a mass slightly greater than that of a proton
  20. 33. temperature in which a solid melts
  21. 34. Solid carbon dioxide, it evaporates without first passing through a liquid state by a process known as sublimation
  22. 36. The breaking down or destruction of a material, especially a metal, through chemical reactions
  23. 38. To cover or surround with a material that prevents the loss or transfer of heat, electricity, or sound
  24. 39. Colorless, odorless, tasteless mixture of gases that surrounds Earth
  25. 40. A flowing movement
  26. 42. technique used to separate the components of a chemical mixture by moving the mixture along a stationary material
  27. 43. Any of a large group of elements that conduct heat and electricity well
  28. 44. total number of protons and neutrons in the nucleus of an atom
  29. 47. mass giving of a given atom or molecule, expressed in atomic mass units
  30. 48. The amount of space occupied by a 3-D object
  31. 50. change a liquid into a solid or nearly solid mass (blood)
  32. 51. property of all particles of matter that determines whether they are attracted to or repulsed by other particles
  33. 53. white crystalline compound
  34. 55. a process which changes matter into a different substance
  35. 58. One of the three basic forms of matter, composed of molecules in constant random motion
  36. 61. The temperature at which air becomes saturated with water vapor and dew forms
  37. 62. A rearrangement of the atoms or molecules of two or more substances that come into contact with each other resulting in the formation of one or more new substances
  38. 65. substance participating in a chemical reaction, especially one present at the start of the reaction
  39. 67. continuous process by which carbon is exchanged between organisms and the environment
  40. 68. Having the electric charge of a proton
  41. 69. To add an electron to or remove an electron from an atom or group of atoms so as to give it an electric charge
  42. 70. a chemical bond that involves the sharing of electron pairs between atoms
  43. 72. The process of burning (a chemical change)
  44. 75. The upward force that a fluid exerts on an object that is less dense than itself
  45. 76. chemical combination of a substance with oxygen A nonmetal element that exists in its free form as as a colorless, odorless gas and makes up about 21 percent of Earth’s atmosphere
  46. 77. An instrument that measures the humidity in the air
  47. 78. The change of a liquid into a vapor at a temperature below the boiling point
  48. 81. Water in its gaseous state
  49. 83. Having positive electric charges exactly balanced by negative electric charges
  50. 88. how something feels
  51. 93. relating to heat
  52. 94. A metallic substance made by mixing ad fusing two or more metals to obtain desirable qualities
  53. 96. A form of energy produced by the motion of molecules
  54. 98. change from a liquid to a solid state by cooling or being cooled to the freezing point