Properties of Matter

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Across
  1. 5. A pure substance made of two or more elements chemically bonded in a fixed ratio.
  2. 6. of Matter The physical form of matter: solid, liquid, or gas.
  3. 9. The ability of a substance to allow heat or electrical current to flow through it; measured in units of siemens (for electrical) or watts per meter-kelvin (for thermal).
  4. 12. The ability of a substance to dissolve in a solvent, usually measured in grams per 100 mL of solvent.
  5. 16. The ability of a substance to be hammered, rolled, or pressed into thin sheets without breaking or cracking.
  6. 18. The way a substance reflects light from its surface; described as shiny, dull, metallic, or glassy.
  7. 20. A chemical reaction in which a substance loses electrons or combines with oxygen.
  8. 22. A number placed in front of a chemical formula to indicate how many molecules or atoms are involved in a reaction.
  9. 23. A state of matter with a definite shape and definite volume; particles are tightly packed.
  10. 24. The temperature at which a solid changes into a liquid.
  11. 26. The ability of a substance to be stretched or drawn into thin wires without breaking.
  12. 29. The tendency of a substance to undergo chemical reactions; some elements are more reactive than others.
  13. 30. Anything that has mass and takes up space (volume).
  14. 31. The amount of matter in an object; measured in grams or kilograms.
  15. 32. The smallest unit of an element that retains the properties of that element; composed of protons, neutrons, and electrons.
  16. 33. The temperature at which a liquid changes into a gas.
  17. 34. A property of a material that breaks, shatters, or cracks easily when struck or bent without significant deformation.
  18. 35. A combination of two or more substances that are not chemically bonded; can be separated by physical means.
Down
  1. 1. A substance that participates in a chemical reaction and is consumed to form products.
  2. 2. A pure substance made of only one type of atom; cannot be broken down into simpler substances by chemical means.
  3. 3. The property of a substance to emit light after absorbing radiation (such as ultraviolet light); the light stops when the radiation stops.
  4. 4. The smallest unit of a compound or element that can exist independently and still retain the properties of the substance.
  5. 7. The property of a substance to be attracted to or repelled by a magnet; the ability to produce a magnetic field.
  6. 8. A new substance formed as a result of a chemical reaction.
  7. 10. The amount of space an object occupies; measured in liters, milliliters, or cubic units.
  8. 11. The ability of a substance to burn in the presence of oxygen.
  9. 13. A process in which substances (reactants) are transformed into new substances (products) with different properties.
  10. 14. The feel or appearance of a surface (smooth, rough, etc.).
  11. 15. The visual appearance of a substance based on how it reflects light.
  12. 17. A state of matter with a definite volume but no definite shape; particles are loosely packed and can move.
  13. 19. The degree to which a substance is poisonous or harmful to living organisms.
  14. 21. Property A characteristic that describes how a substance reacts or changes when it combines with other substances.
  15. 25. A state of matter with no definite shape or volume; particles move freely and rapidly.
  16. 27. The mass per unit volume of a substance; calculated as
  17. 28. A symbolic representation of a chemical reaction showing reactants, products, and their relative quantities.