Characteristics
Classifying
Close-up
Vocabulary
Grab Bag
100
This planet is nearest to Earth at its point of closest approach.
What is Venus?
100
Planets that are the earth's size or smaller are called this.
What is terrestrial planets?
100
This planet has a huge canyon, 4 miles deep and 2500 miles long, and is red due to the iron oxide on its surface.
What is Mars?
100
When a planet is closest to the sun, it is at ___________.
What is perihelion?
100
Who developed the three laws of planetary motion?
Who is Kepler?
200
When Venus travels directly in between the Earth and the Sun it is called this.
What is transit?
200
Planets that are larger than the earth are called this.
What are Jovian planets?
200
This is the 8th planet in our solar system, has 13 moons, and is considered an ice giant.
What is Neptune?
200
The name of the shape of the planetary orbits is called this.
What is elliptical orbit?
200
When a planet is farthest from the sun, it is at _____________________.
What is ahelion?
300
All planets move in this direction.
What is counter-clockwise?
300
The planets whose orbits are farther from the sun than earth's orbit are called this.
What are superior planets?
300
This planet has 63 moons, and has a giant red spot, an atmospheric storm that has been raging for over 900 years.
What is Jupiter?
300
As the Earth passes a superior planet, the superior planet appears to move backward compared to the background start. It is called __________.
What is retrograde motion?
300
A measure of the amount of matter the planet contains is called this.
What is mass?
400
The ______________ (relative brightness) of a planet is related to its distance from the earth.
What is magnitude?
400
The planets whose orbits are between the earth and the sun are called this.
What are inferior planets?
400
This planet has craters, volcanos, a thick environment, but its years are shorter.
What is Venus?
400
A planet's size and mass together determine its ___________.
What is surface gravity?
400
Saturn's moon, Titan, is unique because it has its own ______________.
What is atmosphere?
500
List the nine planets in order beginning with the planet closest to the sun.
What is mercury, venus, earth, mars, jupiter, saturn, uranus, neptune and pluto?
500
Name one of Neptune's moon's from The Great Planetary Debate.
What is Triton?
500
This planet is also known as Eris, it has one moon, and is the newest planet in our solar system.
What is 2003 UB313?
500
The ability of the surface or atmosphere of the planet to reflect light is called this.
What is albedo?
500
Most evolutionary theories state that this kind of material began the solar system.
What is a large cloud of gases and dust?
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