CROSSWORD PUZZLE

1234567
Across
  1. 3. I AM A SHAPE WITH FOUR SIDES
  2. 4. I AM THE NUMBER OF COLORS IN A RAINBOW
  3. 7. NUMBER OF ZEROS IN THOUSAND
Down
  1. 1. HOW MANY SIDES DOES A PENTAGON HAVE?
  2. 2. NUMBER AFTER 99 AND BEFORE 101
  3. 5. I AM THE NUMBER OF PLANETS IN SOLAR SYSTEM
  4. 6. NUMBER OF TOES IN YOUR LEGS