Caesar cipher: hemispheres and the equator: secret code puzzle for Grade 5, page 1 preview

Secret code puzzle · Geography

Caesar cipher: hemispheres and the equator · Grade 5

Crack a Caesar cipher: work out how far the alphabet was shifted, then decode facts about hemispheres and the equator. Practices pattern spotting and logical reasoning.

Grade 5 · ages 10 to 11
Hard
5 to 10 minutes
1 page
Free

Goes with the game Globe Explorer.

The answer key is a separate page for grown-ups. Sign in to download it.

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What the sheet says

Directions: Each letter has been moved along the alphabet by the same number of places. Work out the shift, fill in the key, then decode.

Code key: top row = code letter, bottom row = real letter

What your child practices

Your child practices pattern spotting and logical reasoning. The skill is “Hemispheres and lines of latitude”: use the Equator, the Prime Meridian, the tropics and the hemispheres to describe where places are.

Grades and ages: Grade 5, ages 10 to 11
Time: About 5 to 10 minutes
Subject: Geography
Level: Hard for Grade 5
Answer key: Yes, for grown-ups who sign in
Printing: 1 page, US Letter or A4, low-ink option
Updated: October 15, 2026

How to use it

Read the rules at the top together and try the first step side by side. Use a pencil so mistakes rub out easily, and check every answer at the end. It is one of the harder sheets for Grade 5, best once the basics of the skill are secure.

An answer key comes with it as a separate page that grown-ups download after signing in.

Tip for grown-ups: Start with the shortest coded words; one- and two-letter words crack the code fastest.

Done on paper? A grown-up can record it on the child's page in PlayOwl; downloading alone doesn't count as finished.