Sci Unit 1

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Across
  1. 1. A state of matter without any defined volume or shape
  2. 3. energy The energy an object has because of its motion
  3. 6. A pure substance that is formed when two or more different elements combine; can usually be separated into component elements by chemical reaction
  4. 10. energy Energy in the form of heat
  5. 11. Something that is very tiny
  6. 12. Become or make greater in size, amount, intensity, or degree.
  7. 15. To act on one another
  8. 18. A state of matter with a defined volume but no defined shape and whose molecules roll past each other
  9. 19. A measure of the average kinetic energy of the atoms in a system, used to express thermal energy in degrees
  10. 20. Make or become smaller or fewer in size, amount, intensity, or degree.
Down
  1. 2. Matter with a fixed volume and shape
  2. 4. A material that transmits energy
  3. 5. substance A material with a particular chemical makeup
  4. 6. The transfer of heat energy within an object, or between objects that are directly touching each other, due to collisions between the particles in the objects
  5. 7. Material that has mass and takes up some amount of space
  6. 8. Solid matter that can be used to create things
  7. 9. To get larger
  8. 13. A material with a particular chemical makeup
  9. 14. pressure The force that air puts on an area (related word: pressure)
  10. 16. To get smaller
  11. 17. A combination of substances that can be physically separated from one another