Summary
A Ready Jet Go! clip on PBS LearningMedia. Jet's friends learn why Earth and Mars are sometimes called 'brother planets,' comparing their days, seasons, and rocky ground — and the big ways they differ. A simple planet comparison.
Viewer safety
All ages
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Teaching resources
Discussion questions
Discussion
Earth and Mars are neighbors with a lot in common — and some big differences, too.
- How are Earth and Mars alike?
- What does Mars not have that Earth does?
- Why couldn't you breathe on Mars?
- Which planet would you rather visit, and why?
Quick work-a-long
Vocabulary: Mars, Earth, compare, rocky, neighbor.
Try it: Make a chart: 'Earth' and 'Mars.' Write one way they are the same and one way they differ.


