Matter

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Across
  1. 4. During a _______, the appearance of a substance changes but its properties stay the same (two words).
  2. 7. A _______ can be observed or measured without changing the substance into something else (two words).
  3. 9. A substance’s melting point is the same temperature as its __________________ point.
  4. 10. The measure of the mass per unit volume of a substance is its_______.
  5. 11. An object’s _____ is the amount of matter that makes up that object.
  6. 13. This is the international system of measurement adopted almost universally and accepted as the standard of measurement for STEM (two words).
  7. 16. An object’s ______ is the amount of space that it takes up.
  8. 17. This state of matter differs from gas because its particles have electric charges, so it can conduct electricity. It is most of the matter in the universe.
  9. 19. The SI Unit for Volume.
  10. 21. This is 1000x larger than 1 unit
  11. 22. This state of matter can move about freely in any direction and does not have a shape. It is easily compressible.
  12. 23. ________________ is anything that takes up space and has mass.
  13. 24. The formula for volume is length x width x __________.
Down
  1. 1. A ______ tells how a substance forms new substances when it mixes with something else (two words).
  2. 2. This method can find the volume of an irregularly shaped object.
  3. 3. This state of matter holds its own shape and does not flow. It does not change its volume.
  4. 5. The measure of the pull of gravity on an object is its _______.
  5. 6. The SI Unit for Mass.
  6. 8. The change of state from a gas to a liquid is called _________.
  7. 9. There are clues that indicate a chemical change is occurring: heat, light, sound, color change, and _____________.
  8. 12. This is when a solid can turn into a gas, skipping the liquid phase.
  9. 13. In a solid phase, particles are close together __________ slowly.
  10. 14. During a ____________, a substance mixes with another substance and changes into completely new substances with different properties (two words).
  11. 15. A tool to find mass is called a ________ scale.
  12. 18. This state of matter takes the shape of its container and does flow. It has a fixed volume.
  13. 20. Density is affected by mass, volume, temperature, and_______________.
  14. 23. The SI Unit for Length.