The Cosmos: Some of the Things That Molecules Do | Video Guide

Explain artificial selection using the video's wolf-to-dog domestication example

Explain how a genetic mutation for fur color became a natural-selection advantage in polar bears

Describe what kinases do inside a cell

Compare a feature of Titan's methane/ethane cycle to Earth's water cycle

Show the referenced Cosmos segment before assigning the worksheet — all ten questions ask for facts stated in the video, not independent research.

Use the .doc file if you want to edit question wording or reformat the page; use the .pdf file for a fixed, print-ready copy.

Hold back the included answer page until after students submit their own responses, since both file formats bundle the key with the blank questions.

Video-based note-taking — students record specific facts and explanations as they watch, then write full-sentence answers.

Natural and artificial selection reasoning — students explain the wolf-to-dog and polar bear examples the video presents.

Comparative scientific reasoning — students compare DNA function across species and compare Titan's surface liquids to Earth's water.