general knowledge

123456789
Across
  1. 3. Flightless bird found in Antarctica
  2. 4. Tallest mountain on Earth
  3. 5. Ocean separating Europe and the Americas
  4. 6. Colorful 3D puzzle cube
  5. 8. Favorite food of pandas
  6. 9. Precious yellow metal
Down
  1. 1. First artificial satellite
  2. 2. Mountain range in Asia
  3. 7. Tree-dwelling marsupial from Australia
  4. 8. Famous clock tower in London