Science Questions
Explore questions in the Science category that you can ask Spark.E!
We are the third planet from the sun. Why is space travel to other planets so difficult?
What is the factor that determines if a planet has liquid water?
Even though Venus and Mars are in the habitable zone, why is life not possible right now on those planets?
What could move our habitable zone farther out from the sun?
Are rockets needed once the space shuttle reaches outer space?
You are on a space exploration team that is evaluating a planet for potential life now or in the future. The factors are: molten lava at its core, solid surface, presence of a small ocean, and is in the habitable zone. Which factor is most likely the best indication that life is on this particular planet?
Scientists have discovered a way to ensure astronauts have oxygen at all times. When they breathe in oxygen, what must be filtered from the atmosphere as the astronauts breathe out?
Your space exploration team is trying to find life outside of earth. List the characteristics that a planet must have in order to be considered habitable.
living organisms are able to produce far more offspring than their environment can support
highmass main sequence stars have amore distant and wider ___ than low mass
Looking for an Earth-size planet around a nearby star (besides the Sun) is like looking for a pinhead located _________.
How does the habitable zone around a star of spectral type G compare to that around a star of spectral type M?
the different time perios of the ___ are defined by changes in fossils found from those time periods
the notion that living organisms with advantages that give them greater reproductive success will survice while others perish
Which of the following places is NOT generally considered a potential home for life in our solar system?
the ____ is designed as a way of estimatting the number of intelligen civilizations
Einstein's theory of relativity tells us that travelers who make a high-speed trip to a distant star and back will _________.
The "rare Earth hypothesis" holds that Earth-like planets are probably quite rare. Which of the following statements best sums up the current status of the debate over this hypothesis?
Earth was born about 4.5 billion years ago. According to current estimates, approximately how long after Earth's formation did the Moon form?
Which of the following worlds is not considered a candidate for harboring life?