Tom Murzenski Profile Topics Started Replies Created Engagements Favorites Topics Engaged In Viewing 5 topics - 1 through 5 (of 5 total) Topic Voices Posts Last Post How Do We Know Started by: Tom Murzenski in: Lesson A-4. Matter I: Its Particulate Nature 1 2 1 week, 3 days ago Tom Murzenski Gravity Question Started by: Tilden in: Lesson D-1. Gravity I: The Earth’s Gravity; Horizontal and Vertical 2 2 1 month ago Tom Murzenski Error in text re magnetic fields going through iron Started by: littlechicory in: Lesson A-5A. Magnets and Magnetic Fields 5 8 5 months, 1 week ago Tom Murzenski Additional online reading Started by: CJRichey in: Lesson A-5. Distinguishing Materials 2 2 7 months ago Tom Murzenski Declaration vs Declination Started by: Tom Murzenski in: Lesson D-3A. North, East, South, and West 2 2 9 months, 1 week ago Bernard Nebel Viewing 5 topics - 1 through 5 (of 5 total)