'' List of Up Down, All Around''
- Earth's Magnetic Field
- Dipping Compass
- Cyanometer
- Skywatching
- Moon Box
- Twinkling Starlight
- Stellar Refraction
- Sheet Erosion
- Split a Stone
- The Parallax Principle
- Parallax Shift
- Height Calculation
- Rare-Earth Metal
- Magnetic Fitraction
- Box Periscope
- Mapping the Ocean Floor
