4th Grade Ch. 4 Lesson 1 How are ecosystems balanced

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4th Grade Ch. 4 Lesson 1 How are ecosystems balanced

  1. 1. Ch. 4 Lesson 1 How are ecosystems balanced?
  2. 2. Activity-What is the effect of crowding on plants? Materials: • 2 small paper cups, spoon, potting soil, radish seeds, water Day Procedure Observations 1 3 8 20
  3. 3. Needs of plants & animals to grow & be healthy Food Water Living space Shelter Air Light
  4. 4. All of the parts of an ecosystem are interrelated. • what happens to 1 population- affects whole community
  5. 5. Red foxes eat rabbits.
  6. 6. Water evaporates from a pond, but water is replaced when it rains.

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