Spring

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Across
  1. 4. What colorful arc appears after rain?
  2. 6. What has branches, leaves, and a trunk?
  3. 7. What colorful insect with wings flutters about?
  4. 8. What sings and builds nests in trees?
Down
  1. 1. What shines brightly and warms the Earth?
  2. 2. What colorful plant blooms in spring?
  3. 3. What falls from the sky and helps plants grow?
  4. 5. What green ground covering grows outside?