Big Question 1: Where are we in the universe?
BIG QUESTION 2:
BIG QUESTION 3:
BIG QUESTION 4:
BIG QUESTION 5:
BIG QUESTION 6:
BIG QUESTION 7:
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3.2 [Self Study] Read & Understand

Video lesson

Student book activities

Do activity D-E-F on page 29.

Listen to audio track 17 and read the text on page 30-31:

OD4 audio track 1-17

Do activity A-B-C on page 32.