SME
Grade 12 Science · Problem type
Searching for life
Use this for “Which findings would show a world could hold life, and which would show life itself?”
Sort
What does this finding tell us?
Tap a card, then tap its group.
Assumptions
•
Life as we know it needs liquid water, energy and carbon-based chemistry.
•
A world that could hold life is not proof that it does.
Topic check
See what you know: 5 questions on this topic
New questions each time. Pass to mark it complete.
Refresh
Related lessons
Exoplanets and the search for life
Main lesson
An exoplanet’s orbit from its period
Use this for “A planet circles a star of 0.5 solar masses every 1,461 days. How far is it from its star?”
The habitable zone and a planet’s temperature
Use this for “A star gives off 0.25 times the Sun’s light. Where is its habitable zone, and is a planet at 0.5 AU in it?”
How exoplanets are found
Use this for “Which planets are easiest to find by transits, by the Doppler wobble or by imaging?”