Solve these clues to fill the grid.
- The 3rd planet from the sun
- 1 Across
- An imaginary line around the Earth forming the great circle that is equidistant from the north
- 3 Across
- Boot-shaped country in Europe famous for pasta
- 4 Across
- The line or plane indicating the limit or extent of something
- 6 Across
- Half of the terrestrial globe
- 9 Across
- The line at which the sky and Earth appear to meet
- 12 Across
- Largest continent on Earth
- 13 Across
- Continent with the Sahara desert
- 14 Across
- Island country in Asia with Tokyo as its capital
- 15 Across
- Study of the earth's surface
- 1 Down
- A group's customs, art and way of life
- 2 Down
- A Titan who was forced by Zeus to bear the sky on his shoulders
- 5 Down
- Country in Asia with the Great Wall
- 7 Down
- Largest country in South America
- 8 Down
- A large number or amount or extent (plural)
- 10 Down
- The planet we live on
- 11 Down