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Vocabulary
The Planets
Applications
Final Jeopardy
100
This is a two-word phrase that describes the very large outer planets that don't have any known solid surfaces.
What are gas giants?
100
This is the order of the eight planets.
What are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune?
100
This is the reason why the term 'surface' is not included in the statistics for the gas giants.
What is the fact that the gas giants have no solid surfaces?
200
This is a way to measure distance in space; the average distance between the Earth and the sun.
What is an astronomical unit (AU)?
200
Jupiter's Great Red Spot is a giant, swirling 300-year old one of these.
What is a storm?
200
This is the substance that makes Earth "just right" for sustaining life.
What is water?
300
This is the kind of clockwise rotation that Venus has.
What is retrograde rotation?
300
These are characteristics common to the four inner planets.
What are: terrestrial, small, dense, and rocky?
300
The reason Venus is hotter than Mercury, although Mercury is closer to the sun.
What is the CO2 in Venus's atmosphere creates a greenhouse effect?
400
The inner planets are called this because they are like Earth - small, dense, and rocky.
What is terrestrial?
400
These are characteristics common to the four outer planets.
What are: large, cold, gaseous, and have rings?
400
This is one of the reasons scientists think water may once have existed on Mars.
What is the discovery of river beds on Mars? And/or canyons?
500
Uranus's rotation is unique because it uses this kind of rotation.
What is tilted rotation?
500
These are two elements that are held in common by Jupiter, Saturn, Neptune and the sun.
What are hydrogen and helium?
500
This is one of the main reasons why scientists demoted Pluto from a planet to a dwarf planet on August 24, 2006.
What is the fact that Pluto doesn't "clear its neighborhood?"
500
A conclusion you can draw about a planet’s properties just by knowing how far away it is from the sun.
What is: approximate temperature? Ability to sustain life?