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Science Lesson Kit · Student Worksheet

Pine Ridge Compass Rescue — Independent Challenge

A NEW ranger map uses grid north as magnetic north for this exercise. East increases x; north increases y. Show your thinking.

Grade 4

Name:

Date:

  1. 1.

    The ranger starts at (1,1), moves east 2 squares and north 3 squares. Write the final grid position.

    Unsolved north-up park map for students to trace a route
  2. 2.

    On this map a compass needle reads 8° east of true north. Which is true?

    • Magnetic north is exactly true north.
    • The local magnetic and true north directions differ.
    • Earth has no magnetic field.
  3. 3.

    A needle turns when a metal lunchbox is placed next to it. Write ONE fair test to check whether the lunchbox is affecting it.

  4. 4.

    Sketch or describe arrows for north, east, south and west on a blank compass rose.

    Draw here

  5. 5.

    Explain why a navigator should not assume that the colored needle points to exactly true north.