| 2026-05-13 | Kilauea output |
| 2026-01-07 | Hot stuff |
| 2025-12-07 | It runs hot |
| 2025-11-03 | Red-hot flow |
| 2025-10-07 | 40-Across output |
| 2025-10-06 | Source of much igneous rock |
| 2024-12-01 | It goes with the flow |
| 2024-09-24 | What baking soda and vinegar simulate, in a classic science fair experiment |
| 2024-08-21 | The Floor Is ___ (kids' make-believe game) |
| 2024-04-09 | It runs hot |
| 2024-03-12 | ___ cake (dessert with a liquid chocolate core) |
| 2024-02-22 | Hot topping for a cone? |
| 2023-12-13 | Hot stuff |
| 2023-10-30 | What magma becomes when it's erupted |
| 2023-09-10 | It comes out on top |
| 2023-08-01 | Kind of lamp or cake |
| 2023-07-31 | Volcano output |
| 2023-06-19 | Volcano's output |
| 2022-11-28 | Mount Etna output |
| 2022-07-26 | It can harden into igneous rock |
| 2021-12-17 | It's hot stuff! |
| 2021-05-03 | Stream from a volcano |
| 2021-01-07 | Volcanologist's study |
| 2020-08-31 | Molten flow |
| 2020-08-05 | Rolling rock? |
| 2020-06-22 | Volcanic output |
| 2020-06-01 | "Ingredient" in molten chocolate cake |
| 2020-03-03 | Volcanic flow |
| 2019-12-09 | Outpouring from a volcano |
| 2019-04-02 | Volcano's spew |
| 2019-03-11 | Volcano's spew |
| 2018-12-17 | Volcanic flow |
| 2018-12-02 | What obsidian forms from |
| 2018-09-17 | Volcanic rock |
| 2018-09-06 | It flows and glows |
| 2018-04-04 | Rock that rolls? |
| 2018-01-23 | ___ flow |
| 2017-12-30 | Composition of some beds |
| 2017-07-13 | It goes with the flow |
| 2016-05-30 | What a volcano erupts |
| 2015-12-07 | Volcanic output |
| 2015-10-12 | Volcano's output |
| 2015-04-19 | Coulee's contents |
| 2015-02-12 | ___ cake (rich dessert) |
| 2014-10-27 | Chocolate ___ cake (dessert with a molten center) |
| 2014-10-14 | Slow flow |
| 2014-03-27 | Soap with pumice |
| 2014-03-25 | Mauna Kea emission |
| 2013-12-31 | Volcanic emission |
| 2013-07-01 | Volcanic flow |
| 2013-05-15 | Soap brand that contains pumice |
| 2013-04-29 | Volcanic emission |
| 2013-01-09 | Source of pumice |
| 2012-12-16 | Dangerous outpouring |
| 2012-06-25 | Volcano output |
| 2012-06-12 | Obsidian rock producer |
| 2011-11-03 | Certain lamp goo |
| 2011-10-14 | Source of venanzite |
| 2011-09-25 | Cone former |
| 2010-12-03 | Rolling stone? |
| 2010-06-14 | Volcano's output |
| 2010-05-23 | Pumice source |
| 2009-08-31 | Material from a volcano |
| 2009-08-04 | Molten flow |
| 2009-07-22 | Abrasive soap brand |
| 2009-04-04 | Leucite source |
| 2009-02-23 | Molten flow |
| 2008-06-18 | Etna product |
| 2008-04-16 | Volcanic output |
| 2008-01-31 | It may be found in a cone |
| 2007-12-14 | Flow in a coulee |
| 2007-09-17 | ___ lamp (1960s novelty) |
| 2007-08-28 | Source of basalt |
| 2007-08-07 | Content of some cones |
| 2007-04-15 | 58-Down output |
| 2007-04-02 | Volcanic discharge |
| 2007-03-20 | Source of pumice |
| 2007-03-06 | Source of basalt |
| 2006-12-24 | Rolling rock |
| 2006-11-16 | Soft rock? |
| 2006-09-12 | Magma, after surfacing |
| 2006-09-04 | Volcano output |
| 2006-07-16 | Source of basalt |
| 2006-03-22 | ___ lamp |
| 2005-12-13 | Volcanic flow |
| 2005-11-30 | Rolling rock? |
| 2004-12-20 | Volcano flow |
| 2004-08-20 | Composition of some beds |
| 2004-05-13 | Popular soap |
| 2004-03-04 | Rolling rock |
| 2004-02-29 | Hot rock |
| 2004-02-03 | Hot issue |
| 2003-06-03 | Hot rock |
| 2003-05-28 | Pelée spew |
| 2002-09-07 | Source of leucite and rhyolite |
| 2002-04-29 | Popular hand soap |
| 2002-02-03 | Basalt source |
| 2002-01-18 | Slow roller |
| 2001-12-01 | Obsidian, once |
| 2001-11-19 | Output of Mount Etna |
| 2001-09-11 | Cone material |
| 2001-07-19 | Obsidian, before cooling |
| 2001-03-27 | Rock on the roll? |
| 2001-03-07 | Hawaiian bubbly? |
| 2001-03-05 | Volcanic flow |
| 2000-05-17 | Contents of some cones |
| 2000-04-02 | Rolling rock? |
| 2000-03-19 | ___ Beds National Monument, Calif. |
| 1999-11-30 | It goes with the flow |
| 1999-10-31 | It may be found in a cone |
| 1999-04-12 | Etna output |
| 1999-02-11 | Stromboli output |
| 1999-01-10 | Hot issue |
| 1998-12-15 | Volcanic flow |
| 1998-12-02 | Result of venting? |
| 1998-11-15 | Hot stuff |
| 1998-10-25 | Basalt source |
| 1998-09-09 | Soap brand |
| 1998-09-08 | Volcano flow |
| 1998-08-18 | Volcanic flow |
| 1998-07-25 | It goes with the flow |
| 1998-06-29 | Liquid rock |
| 1998-06-07 | Hot rocks |
| 1998-05-31 | Procter & Gamble soap |
| 1998-05-27 | Kind of lamp |
| 1998-05-10 | Hot issue? |
| 1998-01-14 | Volcanologist's concern |
| 1997-10-20 | Volcano output |
| 1997-02-02 | Hot issue? |
| 1996-12-11 | Proctor & Gamble soap |
| 1996-11-19 | Etna output |
| 1996-06-17 | Popocatepetl emission |
| 1996-05-15 | Kilauea flow |
| 1996-04-03 | Volcanic flow |
| 1995-12-12 | Mt. Etna flow |
| 1995-11-15 | Volcano flow |
| 1995-09-18 | Etna output |
| 1995-07-23 | Kind of flow |
| 1995-07-11 | Igneous flow |
| 1995-04-02 | Hot rock |
| 1994-08-23 | Pelee output |
| 1993-12-14 | Kind of flow |