Podcast
Questions and Answers
NASA has evidence of flowing water on Mars, which appears as ______ streaks on the surface of the planet.
NASA has evidence of flowing water on Mars, which appears as ______ streaks on the surface of the planet.
dark, narrow
True or false:The dark streaks on Mars' surface appear year-round.
True or false:The dark streaks on Mars' surface appear year-round.
False (B)
What is the total length of track in the world's largest model train set in Hamburg?
What is the total length of track in the world's largest model train set in Hamburg?
- 5,200 feet
- 25,000 feet
- 52,000 feet (correct)
- 100,000 feet
What is the total length of track in the Miniatur Wunderland in Hamburg?
What is the total length of track in the Miniatur Wunderland in Hamburg?
How many visitors does Miniatur Wunderland in Hamburg attract each year?
How many visitors does Miniatur Wunderland in Hamburg attract each year?
Which city is NOT mentioned as having model train exhibits?
Which city is NOT mentioned as having model train exhibits?
The streaks appear during the ______ months and fade the rest of the year.
The streaks appear during the ______ months and fade the rest of the year.
True or false: The wet soil in the streaks on Mars is at least 1000 feet long.
True or false: The wet soil in the streaks on Mars is at least 1000 feet long.
What is the annual visitor count for Miniatur Wunderland in Hamburg?
What is the annual visitor count for Miniatur Wunderland in Hamburg?
True or false: The chemical signature of water alone was detected in the streaks on Mars.
True or false: The chemical signature of water alone was detected in the streaks on Mars.
The streaks consist of ______ soil and are at least 300 feet long.
The streaks consist of ______ soil and are at least 300 feet long.
In which cities can model train exhibits be found?
In which cities can model train exhibits be found?
The chemical signature of ______ compounds combined with water was detected.
The chemical signature of ______ compounds combined with water was detected.
True or false: The salt compounds in the streaks on Mars cause the water to freeze at extremely low temperatures.
True or false: The salt compounds in the streaks on Mars cause the water to freeze at extremely low temperatures.
What subjects can building model railways help explore?
What subjects can building model railways help explore?
What can building model railways be a way to explore?
What can building model railways be a way to explore?
The salt compounds prevent water from freezing at ______ low temperatures.
The salt compounds prevent water from freezing at ______ low temperatures.
What is a benefit of model railroading?
What is a benefit of model railroading?
True or false: The discovery of flowing water on Mars has no potential implications for the possibility of microscopic life forms on the planet.
True or false: The discovery of flowing water on Mars has no potential implications for the possibility of microscopic life forms on the planet.
Which career paths can tinkering with model trains potentially lead to?
Which career paths can tinkering with model trains potentially lead to?
True or false: Collecting rocks and soil from Mars for analysis on Earth is currently impossible.
True or false: Collecting rocks and soil from Mars for analysis on Earth is currently impossible.
The 2015 finding could have major implications for the possibility of ______ life forms on Mars.
The 2015 finding could have major implications for the possibility of ______ life forms on Mars.
What is a potential benefit of model railroading?
What is a potential benefit of model railroading?
What careers can tinkering with model trains potentially lead to?
What careers can tinkering with model trains potentially lead to?
How have model trains evolved over time?
How have model trains evolved over time?
The only way to determine whether there's life on Mars is to collect rocks and soil from the planet for analysis on ______.
The only way to determine whether there's life on Mars is to collect rocks and soil from the planet for analysis on ______.
True or false: The source of the water on Mars' surface is definitely melting ice.
True or false: The source of the water on Mars' surface is definitely melting ice.
What is the level of complexity of model trains today?
What is the level of complexity of model trains today?
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Study Notes
- NASA has evidence of flowing water on Mars, which appears as dark, narrow streaks on the surface of the planet.
- The streaks appear during the warmer months and fade the rest of the year.
- The streaks consist of wet soil and are at least 300 feet long.
- The chemical signature of salt compounds combined with water was detected.
- The salt compounds prevent water from freezing at extremely low temperatures.
- The 2015 finding could have major implications for the possibility of microscopic life forms on Mars.
- The only way to determine whether there's life on Mars is to collect rocks and soil from the planet for analysis on Earth.
- Liquid water could potentially be used for drinking and for creating oxygen and rocket fuel.
- The source of the water remains a mystery, but it could be melting ice, an underground aquifer, water vapor from the thin Martian atmosphere, or some combination of these.
- Scientists will continue to study the Red Planet to answer questions about its potential for life and the origin of liquid water.
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