6th Grade Science

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Across
  1. 1. properties A property of matter that can only be observed by changing what the substance is.
  2. 3. An organism that can create its own energy
  3. 6. The study of how organisms interact with each other and their environment
  4. 7. This happens when two or more organisms both need a limited resource
  5. 10. properties A property of matter that can be observed without changing what the substance is.
  6. 12. A chemical property of matter that shows how likely it is to start on fire when exposed to heat
  7. 18. A physical property of matter that shows how tightly packed matter is
  8. 19. An organism that eats other organisms for energy
  9. 20. material A material made by humans putting a natural substance through a chemical change
  10. 21. Made when 2 or more atoms of different elements bond together
Down
  1. 2. Made when one or more atoms bond together
  2. 4. The average kinetic energy of the particles that make up a substance
  3. 5. State of matter that cannot change shape or volume
  4. 6. The interaction of all plants, animals, and abiotic factors in an area
  5. 8. The transfer of thermal energy from one thing to another
  6. 9. The number of different species in an ecosystem
  7. 11. State of matter that can change shape and volume
  8. 13. State of matter that can change shape but not volume
  9. 14. Anything that has mass and takes up space
  10. 15. When atoms of 2 or more molecules interact with each other to create ne molecules
  11. 16. The smallest unit of matter that represents an element
  12. 17. The energy of motion