J. Bleecker · worksheet

Origins of Life & the Microscopic Revolution

Pre-watching 1–2 · During-video 1–11 · Post-watching 12–13

0 / 16 parts

Your assignment

Companion to Bleecker’s NOVA viewing assignment. Keep the original questions and timestamps beside the video. Separate video evidence from your own reflection.

Numbered companions follow the class work. Keep the original for exact wording, tables and diagrams.

Pre-watching2

Pre 1Question Pre 1Which ingredients would you expect living things to need?Open Pre 2Question Pre 2Has visible large life always dominated Earth?Open

During the video11

1Question 1Early Earth · 07:31Open 2Question 2Bombardment · 08:08Open 3Question 3Elements and carbon · 14:25Open 4Question 4Miller–Urey · 15:23Open 5Question 5Meteorite evidence · 24:13Open 6Question 6Impact experiment · 30:02Open 7Question 7Deep-mine microbes · 33:04Open 8Question 8Hydrothermal vents · 36:42Open 9Question 9Stromatolites · 40:03Open 10Question 10Oxygen and geology · 44:05Open 11Question 11Earth-history clock · 48:26Open

Post-watching2

12Question 12Oxygen crisis and opportunityOpen 13Question 13Microbes through Earth historyOpen

Material & context1

1Before using the videoOpen

Mark a section finished

Pre-watching reflectionDuring the videoPost-watching analysisReturn to the original

Your original saved section checks are preserved.

Everything from class,
without digging for it.