SCIENCE 9 - CROSSWORD PUZZLE

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