Announcements Prelim I is in 2 weeks! In-section review next week Assignment: send me 2 questions or concepts you want me to review by Sunday at 7pm – your questions to: – This counts as 2 points of today’s section grade – Also, homework is due next week

Homework Due in section – If you’re not in section on the day that homework is due, you’ll lose 2 points for attendance All answers must be in your own words – This shows me that you understand the concepts – Do not copy from the book – Do not copy from the lectures/section notes – Do not copy from a friend

Any questions from the past week?

Concepts from the past week Sidereal vs. synodic days and periods Seasons Phases of the Moon Tides

Image from Sidereal vs. Synodic

Seasons Image from

How seasons work Animated gif from

Phases of the Moon

Tides I Image from

Tides II Image from