Properties of Matter

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Across
  1. 2. A measure of how much mass is contained in a given volume.
  2. 5. A measure of the force of gravity on an object's mass. (Measured in Newtons, but often used interchangeably with mass in everyday language).
  3. 10. The force of attraction or repulsion that is produced by an object's magnetic field. (A physical property).
  4. 12. Mass The average mass of the atoms of an element, approximately equal to the total number of protons and neutrons in an atom. (Measured in atomic mass units, amu).
  5. 14. Point The specific temperature at which a substance changes from a solid to a liquid.
  6. 16. _______ change: A change that alters the form or appearance of a material but does not change the substance into a new substance. Examples: Cutting paper, melting ice.
  7. 18. A characteristic of a substance that can be observed or measured.
  8. 19. Point The specific temperature at which a substance changes from a liquid to a gas.
  9. 20. The state of matter that has a definite volume but no definite shape; it takes the shape of its container.
  10. 22. The amount of space that an object occupies.
Down
  1. 1. ______ property: A characteristic of a substance that can be observed or measured without changing the substance into a new substance. Examples: Color, hardness, density, melting point.
  2. 3. A pure substance that cannot be broken down into simpler substances by chemical means. All atoms of an element have the same atomic number.
  3. 4. _______ change: A change that produces one or more new substances with different properties. Examples: Burning wood, rusting.
  4. 6. The ability of a substance to transmit heat or electricity.
  5. 7. Anything that has mass and takes up space (volume).
  6. 8. Number The number of protons found in the nucleus of every atom of that element. This number is unique to each element.
  7. 9. A pure substance made of two or more different elements chemically bonded together in a fixed ratio (e.g., water, H₂O).
  8. 11. A measure of the amount of matter in an object.
  9. 13. Atoms of the same element that have the same number of protons but a different number of neutrons, resulting in a different atomic mass.
  10. 15. ______ property: A characteristic that describes a substance's ability to change into different substances. Examples: Flammability, reactivity.
  11. 17. The ability of a substance to dissolve in another substance, typically a liquid.
  12. 21. Substance A single type of matter that has a definite, fixed composition and distinct properties. Can be either an element or a compound.