3.01 Formation of Planets
3.02 Characteristics of Planets
3.03 The Motion of Planets
3.04 Habitability Conditions
100
The nebular hypothesis begins with this, defined as a cloud of gas and dust.
What is a SOLAR NEBULA?
100
The planet with the highest surface temperature in the solar system.
What is VENUS? 863°F!
100
Planets move in predictable paths called these.
What are ORBITS?
100
All life relies on an energy source to drive metabolic processes. On Earth, energy mainly comes from this.
What is the SUN?
200
During accretion, planetesimals collide and merge, forming larger bodies called these.
What are PROTOPLANETS?
200
This planet is known for its prominent Great Red Spot.
What is JUPITER?
200
The model of planetary motion that believed the Earth was the center of the universe and that planets and stars revolved around them.
What is the GEOCENTRIC MODEL?
200
This feature makes Earth uniquely habitable among the planets in the solar system.
What is LIQUID WATER?
300
Astronomers study these types of systems around distant stars to see how planet formation differs in other parts of the galaxy.
What are EXOPLANETARY SYSTEMS?
300
This planet rotates on its side, with an axial tilt of approximately 98 degrees.
What is URANUS?
300
The model of planetary motion that proposed the sun was the center of the solar system, with planets, including Earth, orbiting around it.
What is the HELIOCENTRIC MODEL?
300
Also known as the "Goldilocks Zone," this region around a star are where the temperatures are "just right" for liquid water to exist on a planet's surface.
What is the HABITABLE ZONE?
400
The 2 molecules found in the thick atmospheres of most gas giants are these.
What are HYDROGEN and HELIUM?
400
The primary component of Mars' atmosphere is this.
What is CARBON DIOXIDE?
*Mars also has the largest volcano in the entire solar system named Olympus Mons.
400
This scientific law states that every mass in the universe attracts every other mass.
What is NEWTON'S LAW OF UNIVERSAL GRAVITATION?
400
This plays a crucial role in maintaining habitability by regulating temperature and shielding from radiation.
What is PLANETARY ATMOSPHERE?
500
This is the primary reason for the blue color of Uranus and Neptune.
What is METHANE IN THIER ATMOSPHERES?
It absorbs red light and reflects blue light.
500
These unique features were found on Saturn's Moon, Titan.
What were LAKES AND RIVERS OF LIQUID METHANE AND ETHANE?
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500
This law of planetary motion states that a planet moves faster when it is closer to the sun and slower when it is farther away.
What is KEPLER'S 2ND LAW OF PLANETARY MOTION?
500
This planet once had liquid water but lost its magnetic field causing its atmosphere to thin and its water to evaporate or freeze.
What is MARS?
