Lesson 2: Components of an Ecosystem

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Across
  1. 3. A group of different species that live in the same area.
  2. 4. Humans use this have once they eat that allows us to run, walk, read, dance and think
  3. 6. The smallest part of a substance that has the same properties of the substance.
  4. 8. The process by which living things produce offspring.
  5. 9. To reuse the same matter in different forms.
  6. 10. Anything that has mass and takes up space.
Down
  1. 1. A group of organisms of the same species that live in the same area.
  2. 2. The process cells use to release energy from food is ____ respiration.
  3. 5. This is made of all Earth's ecosystems, the highest level of interaction.
  4. 7. The source of energy for almost all ecosystems on Earth.