Across
- 4. The Philippine agency that monitors volcanoes and earthquakes.
- 7. The reason some constellations are visible only in certain months.
- 8. Star color associated with medium temperature and middle age.
- 9. Star color that indicates the highest temperature.
- 11. The highest point of a volcano.
- 14. Frozen water that falls from clouds as balls of ice.
- 15. A volcano formed by layers of lava and pyroclastic materials.
- 16. A factor affecting eruptions related to how hot the magma is.
- 20. The reason stars appear to move across the night sky.
- 21. A volcano with recorded eruptions within the last 600 years.
- 26. The nighttime sky observed from Earth.
- 27. The lowest outer part of a volcano.
- 28. A very violent eruption with tall ash clouds.
- 30. A part of the volcano wall that collapses after an explosive eruption.
- 31. The brightest star also known as the North Star.
- 32. A broad volcano with gentle slopes.
- 33. The underground passageway where magma travels.
- 35. A funnel-shaped opening of a volcano.
- 36. The path Earth follows as it moves around the Sun.
- 37. The color of the Sun.
- 38. The group of stars visible during specific seasons.
- 40. The movement of Earth on its axis.
- 41. A luminous object in space made mainly of hydrogen and helium.
- 42. Another term for a “sleeping volcano”.
- 43. The season when certain constellations disappear from view.
- 45. Renewable energy that comes from Earth’s internal heat.
- 47. The long-term pattern of weather in an area.
- 48. An eruption type involving contact between water and magma.
- 50. The element that stars primarily use as fuel.
Down
- 1. A star’s apparent size as seen from Earth depends on this.
- 2. A guide star commonly used for navigation.
- 3. An eruption caused by steam when hot rocks contact water.
- 5. A type of eruption with lava fountains.
- 6. A recognized pattern of stars in the night sky.
- 10. The total number of officially recognized constellations.
- 12. A volcano with no record of eruption for the last 10,000 years.
- 13. The study of stars and constellations.
- 17. The movement of Earth around the Sun.
- 18. The imaginary line around which Earth spins.
- 19. The belt where many volcanoes are found around the Pacific Ocean.
- 22. The mouth or opening of a volcano.
- 23. The large pool of molten rock beneath Earth’s surface.
- 24. A natural opening on Earth’s surface where molten rocks, gases, and ash come out.
- 25. A magma factor that increases viscosity due to high silica content
- 29. Long-term increase in Earth’s surface temperature.
- 34. The change in star color that indicates temperature differences.
- 39. Hardened magma that forms flat layers inside cracks.
- 44. Star color that indicates the coolest temperature.
- 46. The age of a star can be inferred from its.
- 49. The element produced during nuclear fusion in stars.