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MapStudy · Student worksheet · 5–10 minutes

Where did the poles go?

Use the geographic grid to distinguish Earth’s poles from the edges of a rotated map.

Name: Date:

1. Predict

If a map is centered on a different place, must the North Pole still be at the top?

2. Explore

Open the experiment in another tab ↗

Start at mapstudy.com/learn/find-the-poles and choose “Open experiment.”

  1. Open the experiment. Follow the longitude lines toward the geographic poles. A pole on the far side of Earth may be hidden.
  2. Unfold Earth and look for the North Pole and South Pole labels. Follow the geographic grid around them.
  3. Select “Classic orientation” below the map. Notice how the grid and the map’s top and bottom change.
  4. With classic orientation still selected, switch from Plate carrée to Mercator. Read the note below the viewer about its missing polar regions.

3. Notice & explain

Where did the geographic poles appear in the centered flat map? Were they necessarily at the top and bottom?

What happened to the geographic grid when you changed to classic orientation?

Why can’t the classic Mercator map show the exact North and South Poles?

MapStudy · Original activity · You may print and share this worksheet for teaching with credit to MapStudy.

MapStudy · Teacher notes

Find the geographic poles

Learning goal: Use the geographic grid to distinguish Earth’s poles from the edges of a rotated map.

Preparation: Internet access and the projection explorer on one shared screen or student devices. Suggested ages 10+, with adult guidance as needed. Allow 5–10 minutes.

Discussion & expected observations

  1. In this centered example, the poles are inside the flat map. The map’s upper and lower edges belong to a rotated reference frame, not necessarily to geographic north and south.
  2. On classic Plate carrée, the curved geographic grid becomes straight horizontal parallels and vertical meridians. Each pole is represented along a map edge.
  3. Mercator’s north–south coordinate grows without bound toward either pole. MapStudy stops at about 85.05° north and south in classic orientation.

Keep the explanation precise

Geographic poles are not magnetic poles. In a centered Mercator view, the omitted poles belong to the rotated projection frame; the geographic poles may be visible. Use classic orientation for the final question.

Extend the activity

Return to the centered view and choose a different country. Predict where the geographic poles will appear before unfolding.

Sources & further reading

Original MapStudy activities, informed by these projection references. Country boundaries in the explorer come from Natural Earth. The animation illustrates a transition; its intermediate shapes are not separate named projections.

mapstudy.com/classroom/find-the-poles · Classroom printing and sharing permitted with credit to MapStudy.