| Flap 1 |
Flap 2 |
| beneath | under |
| buried | covered up underground |
| chimney | a natural or human-made hollow, vertical structure for the passage of smoke, gas or fire |
| earthquakes | sudden movements of Earth's crust followed by a series of shocks |
| fireworks | explosions set off to create bright lights and colorful displays for entertainment |
| force | power or energy |
| trembles | vibrates; shakes |
| volcanoes | openings in Earth's crust from which molten rock, dust, ash, and hot gases flow |
