science

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Across
  1. 2. a process of changing solid to gas without passing through the liquid state.
  2. 5. is a nonuniform mixture in which the components separate and the composition varies.
  3. 6. any standard used for making comparisons in measurements.
  4. 8. a colloid made up of two liquids that are immiscible and small particles suspended in it.
  5. 10. the scientific discipline involved with elements and compounds composed of atoms, molecules and ions.
  6. 16. has a definite volume, it does not have a definite shape.
  7. 18. the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature.
  8. 19. formed when solid particles are dispersed in a liquid phase
  9. 20. a system of measurement that uses the meter, liter, and gram as base units of length (distance), capacity (volume), and weight (mass).
  10. 21. a substance is the relationship between the mass of the substance and how much space it takes up (volume).
  11. 22. is anything that has mass and takes up space.
  12. 23. a nonmetallic gaseous chemical element with atomic number 1 that is the simplest and lightest of the elements
  13. 24. the simplest form of matter
  14. 26. a colloidal system of particles dispersed in gas
  15. 29. are properties can be observed or measured without changing the composition of matter.
  16. 30. a substance formed when two or more chemical elements are chemically bonded together.
  17. 31. the study of the chemistry of materials from non-biological origins.
  18. 34. the smallest unit of ordinary matter that constitutes a chemical element.
  19. 35. are uniform mixtures that don't separate or settle out.
  20. 36. are properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter.
  21. 37. a mixture in which the components that make up the mixture are uniformly distributed throughout the mixture
Down
  1. 1. composed of two or more substances combined physically in variable proportions.
  2. 3. a neutral subatomic particle found in the atomic nucleus.
  3. 4. is a subatomic particle found in the nucleus of every atom.
  4. 7. The study of chemical processes that occur inside of living organisms
  5. 9. a type of chemical element which has properties in between, or that are a mixture of, those of metals and
  6. 11. branch of chemistry that studies chemical compounds that contain the element carbon, and carbon-hydrogen bonds.
  7. 12. the process by which a substance changes from the solid phase to the liquid phase.
  8. 13. is a colloid of a liquid in a solid.
  9. 14. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  10. 15. sol, formed when solid particles are dispersed into another solid.
  11. 17. a purification process where the components of a liquid mixture are vaporized and then condensed and isolated
  12. 19. a heterogeneous mixture in which solute-like particles settle out of a solvent-like phase
  13. 25. is a homogeneous mixture of two or more substances
  14. 27. sedimentation of particles under the influence of the centrifugal force and it is used for separation of superfine suspensions.
  15. 28. is a state of matter characterized by particles arranged such that their shape and volume are relatively stable.
  16. 32. a process used to separate solids from liquids or gases using a filter medium that allows the fluid to pass through but not the solid.
  17. 33. a gas disbursed in a liquid or a solid.