Educational worksheet asking students to complete sentences about latitude and longitude using provided words.

Let's solve the extension task by filling in the missing words using the provided word bank:

Word Bank:
- Equator
- horizontally
- west
- surface
- London
- Prime Meridian
- vertically
- north
- parallels
- South Pole

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Now, let's go through the text and fill in the blanks logically.

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Original Text with Blanks:

> Lines of latitude and longitude are used to locate places on the Earth’s __________. Lines of latitude run from east to west __________ across a map of the world. They are also called __________. The most important line of latitude is the __________. Lines of latitude measure how far a place is __________ or south of the Equator.
>
> Lines of longitude run from north to south __________ across a map of the world. They stretch from the North Pole to the __________. The most important line of longitude is the __________ which runs through Greenwich in __________. Lines of longitude measure how far a place is east or __________ of the Prime Meridian.

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Step-by-step Filling:

1. "Lines of latitude and longitude are used to locate places on the Earth’s __________."
→ This refers to the physical layer where we locate places — the surface.
✔ surface

2. "Lines of latitude run from east to west __________ across a map of the world."
→ Latitude lines go side to side (left to right), so they run horizontally.
✔ horizontally

3. "They are also called __________."
→ Latitude lines are commonly known as parallels because they are parallel to each other.
✔ parallels

4. "The most important line of latitude is the __________."
→ The main line of latitude is the Equator, which divides the Earth into Northern and Southern Hemispheres.
✔ Equator

5. "Lines of latitude measure how far a place is __________ or south of the Equator."
→ We use north or south of the Equator.
✔ north

6. "Lines of longitude run from north to south __________ across a map of the world."
→ Longitude lines go up and down, so they run vertically.
✔ vertically

7. "They stretch from the North Pole to the __________."
→ Longitude lines go from North Pole to South Pole.
✔ South Pole

8. "The most important line of longitude is the __________ which runs through Greenwich in __________."
→ The main longitude line is the Prime Meridian, and it passes through London (Greenwich, London).
✔ Prime Meridian, ✔ London

9. "Lines of longitude measure how far a place is east or __________ of the Prime Meridian."
→ East or west of the Prime Meridian.
✔ west

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Final Completed Text:

> Lines of latitude and longitude are used to locate places on the Earth’s surface. Lines of latitude run from east to west horizontally across a map of the world. They are also called parallels. The most important line of latitude is the Equator. Lines of latitude measure how far a place is north or south of the Equator.
>
> Lines of longitude run from north to south vertically across a map of the world. They stretch from the North Pole to the South Pole. The most important line of longitude is the Prime Meridian which runs through Greenwich in London. Lines of longitude measure how far a place is east or west of the Prime Meridian.

✔ All blanks filled correctly using the word bank.