Across
- 4. - Energy derived from the heat in the interior of the earth
- 6. - black form of carbon used in lead pencils
- 7. - mapmaker
- 9. - Study of the earth's features - like rocks and minerals and other features
- 10. - measures temperature
Down
- 1. - A hollow rock inside which mineral crystals have grown.
- 2. - An instrument that measures distance traveled by a vehicle
- 3. - a device used to control the temperature
- 4. - study of the earth's surface
- 5. - instrument for measuring speed
- 8. - mathematics dealing with lines, angles, surfaces, and solids