Science Vocabulary

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Across
  1. 5. Can be observed without changing the substance
  2. 9. Gained, usually nonmetal
  3. 11. An element or substance that is not a metal
  4. 12. A chemical change that produces or makes a new substance
  5. 13. Parts of mixture look the same
  6. 14. Cannot be denied or doesn't work
  7. 15. The columns
  8. 18. The number placed before the variable
  9. 19. A change that does not affect the identity of the substance
  10. 20. Absorbs energy in the form of heat
  11. 21. Makes a reaction go faster but is not used up
  12. 23. A reaction in which something reacts with oxygen. The combustion of organic compounds usually takes the form organic compound + oxygen => water + carbon dioxide.
  13. 25. Elements transfer electrons
  14. 30. Your purpose for having the experiment
  15. 31. An element, feature, or factor that is liable to vary or charge
  16. 33. 1 element and 1 compound form
  17. 35. Average mass of all atoms
  18. 36. Ion with more than one atom, has a charge, acts like a single unit
  19. 38. Symbolic representation of a chemical reaction in the form of symbols and formulae
  20. 39. 2 or more atoms/ compounds physically combined
  21. 43. Has a negative charge and is outside the nucleus in orbit
  22. 44. Parts of a mixture look different
  23. 46. Have electrons that are like noble gas electrons
  24. 47. An element whose properties are intermediate between those of metals and solid nonmetals.
  25. 48. Something that stays the same
  26. 49. How compact an object is
  27. 50. Rows
  28. 51. The elements have a repeating pattern that allow them to be placed in groups and periods
  29. 54. Identifies the element
  30. 56. 2 or more atoms chemically combined
  31. 58. Rounded atomic mass
  32. 59. To where you can control your experiment
  33. 60. Characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed
  34. 61. Same ratio of atoms no matter the size of the substances
Down
  1. 1. The variable that doesn't depend on another
  2. 2. Has a neutral or no charge and is inside the nucleus
  3. 3. Energy Energy stored in the bonds of chemical compounds
  4. 4. The substance after the change has occurred, written o the right side of the arrow
  5. 6. Protons, electrons, and neutrons
  6. 7. The amount of times you experience your experiment
  7. 8. Positive, lost electrons, usually metals
  8. 10. The substance before the change, written on the left side of the arrow
  9. 16. Surrounding an object
  10. 17. 2 elements form a compound
  11. 22. I compound forms 2 or more elements
  12. 24. 2 compounds form 2 new compounds
  13. 26. A change that creates a new substance
  14. 27. Has an equal number of atoms on both sides of the arrow.
  15. 28. A shiny hard piece of matter
  16. 29. Releases energy in the form of heat
  17. 32. A set of chemical symbols showing the elements present in a compound and their relative proportions, and in some cases the structure of the compound.
  18. 34. Location of protons and neutrons
  19. 37. Physical restraints used to hold on to something
  20. 40. The variable that depends on another
  21. 41. All atoms want 8 valence electrons like the noble gasses
  22. 42. Describes how a substances changes into a new substance
  23. 45. Elements share electrons
  24. 52. Two or more atoms of the same element, they have the same number of protons but different number of neutrons
  25. 53. The basic unit of a chemical element
  26. 55. Simplest form of that species
  27. 57. Has a positive charge and is inside the nucleus