All together puzzle

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Across
  1. 4. properties are characteristics that can be observed or measured without changing the composition of a substance
  2. 6. is the number of living things that live together in the same place.
  3. 7. is a community of interacting organisms and their environment. Living things interact with each other and also with non-living things like soil, water and air
  4. 9. refers to a group of similar organisms that are able to reproduce
  5. 12. All the physical surroundings on Earth are called the environment. The environment includes everything living and everything nonliving.
Down
  1. 1. Path of food and energy from one organism to another in an ecosystem
  2. 2. an organism that gets its energy from eating plants or animals.
  3. 3. are small living things that eat everything from waste and garbage to dead animals
  4. 5. is a rise of water with no place to go.
  5. 8. is all of the different populations of living things that interact with one another in an area
  6. 10. an organism that uses the SUN light to make its own food and energy
  7. 11. is a continuous period of dry weather when an area gets less than its normal amount of rain