Science 6: Volcanic Activity and Safety

What’s inside

Unscramble each word using the clue about volcanoes, volcanic materials, eruptions, monitoring, and safety.

1. An opening in Earth's crust where molten rock, gases, and other materials can escape. (7 letters)
2. Molten rock found beneath Earth's surface. (5 letters)
3. Molten rock that reaches Earth's surface during an eruption. (4 letters)
4. The release of lava, ash, gases, and other materials from a volcano. (8 letters)
5. A bowl-shaped opening near the top of a volcano. (6 letters)
6. An opening through which volcanic materials escape. (4 letters)
7. The thick layer of Earth beneath the crust where much of the heat driving volcanic activity originates. (6 letters)
8. A word describing the large plates of Earth's crust and uppermost mantle that move slowly. (8 letters)
9. Large pieces of Earth's outer shell whose movement can contribute to volcanic activity. (6 letters)
10. A classification for a volcano that has erupted in historical or geological times and may erupt again. (6 letters)
11. A commonly used description for a volcano with no known recent eruption or signs of current activity. (8 letters)
12. The Philippine agency that monitors volcanoes, earthquakes, and related hazards. (8 letters)
13. A warning level that communicates the current status of a monitored volcano. (5 letters)
14. The regular observation of a volcano to detect changes that may indicate increasing activity. (10 letters)
15. Fine particles of volcanic rock and glass that may fall during an eruption. (3 letters)
16. A general term for solid volcanic fragments thrown into the air during an eruption. (6 letters)
17. A light volcanic rock with many holes formed by trapped gas. (6 letters)
18. A dark, rough volcanic rock with many holes formed by gas bubbles. (6 letters)
19. A fast-moving mixture of water, volcanic ash, and rock debris flowing down a volcano. (5 letters)
20. A word describing hot mixtures of volcanic gases, ash, and rock fragments that can move rapidly down a volcano. (11 letters)
21. An opening in the ground that releases steam and volcanic gases. (8 letters)
22. A material released by volcanoes that may include water vapor, carbon dioxide, and sulfur dioxide. (3 letters)
23. The organized movement of people away from a dangerous area to a safer place. (10 letters)
24. A natural danger, such as ashfall, lava flow, or a lahar, that can harm people and property. (6 letters)
25. A restricted area around a volcano that people should not enter during dangerous conditions. (9 letters)
26. Protective equipment that helps reduce the breathing of volcanic ash particles. (4 letters)
27. Protective eyewear that helps keep volcanic ash away from the eyes. (7 letters)
28. A safe place where people can stay during a volcanic emergency. (7 letters)
29. An estimate of when and how an eruption may happen, which scientists cannot determine with complete certainty. (10 letters)
30. Planning and taking safety measures before a volcanic emergency occurs. (12 letters)