D-2 worksheet Welcome to BFSU: › Forums › Volume One › Learning Progression “D”: Earth and Space Science › Lesson D-2. Day and Night and the Earth’s Rotation › D-2 worksheet This topic has 0 replies, 1 voice, and was last updated 4 years, 9 months ago by aepstein83. Viewing 0 reply threads Author Posts March 2, 2020 at 9:14 am #8275 aepstein83Participant D2 worksheet and notes: D-2 materials Author Posts Viewing 0 reply threads You must be logged in to reply to this topic.