30.3 and 30.4

Question 1

Jupiter

Answer 1

fifth planet from the sun; the largest planet with continuous, swirling, high-pressure gas storms

Question 2

Saturn

Answer 2

sixth planet from the sun; the second largest planet with the most complex ring system

Question 3

Uranus

Answer 3

seventh planet from the sun; appears blue-green due to methane in the atmosphere; its axis of rotation is tilted on its side

Question 4

Neptune

Answer 4

eighth planet from the sun; has storms similar to Jupiter’s and is blue due to methane in the atmosphere

Question 5

dwarf planet

Answer 5

nearly-spherical object in orbit around the sun that is not a satellite, and has not cleared the debris in its orbit

Question 6

comet

Answer 6

object in elliptical orbit around the sun composed of dust and particles, frozen water, methane and ammonia; vaporized due to heat from the sun, producing a coma and a tail

Question 7

asteroid

Answer 7

rocky object formed from material similar to that of the planets, orbiting the sun

Question 8

meteoroid

Answer 8

sand-to-boulder sized rocky objects orbiting the sun

Question 9

Sedna

Answer 9

distant planetoid, smaller than Pluto, larger than comets, with a very elliptical orbit

Question 10

extraterrestrial life

Answer 10

life beyond earth, object of the search by exobiologists

Question 11

Which space probes flew past Jupiter in 1979

Answer 11

Voyager 1 and Voyager 2

Question 12

Which space probe reached Jupiter in 1995

Answer 12

The Galileo space probe

Question 13

What did the Voyager probes and Galileo study

Answer 13

composition, structure, and motion of Jupiter’s atmosphere and features of its moons

Question 14

How many known moons does Jupiter have

Answer 14

63

Question 15

What are the four Galilean moons

Answer 15

Ganymede, Callisto,Io, and Europa

Question 16

Which of the Galilean moons is the largest in the solar system

Answer 16

Ganymede

Question 17

Which of the Galilean moons most likely have water trapped beneath their surface

Answer 17

all of them except Io

Question 18

Which of the Galilean moons is the most volcanically active object in the solar system

Answer 18

Io

Question 19

What is Saturn’s most commonly known feature

Answer 19

The largest and most complex ring system

Question 20

What are Saturn’s rings made of

Answer 20

particles of water-ice

Question 21

How many moons does Saturn have at least

Answer 21

60

Question 22

What is the name of Saturn’s largest moon

Answer 22

Titan

Question 23

What is the name of the spacecraft that approached Saturn in 2004

Answer 23

Cassini-Huygens

Question 24

What was Cassini’s mission

Answer 24

collected data about the sun, Saturn’s ring system, and Saturn’s many moons

Question 25

What was the Huygens mission

Answer 25

Went to Titans surface

Question 26

Does Uranus have moons

Answer 26

yes

Question 27

How is Uranus’s axis tilt

Answer 27

almost parallel to its orbit

Question 28

What color is Uranus

Answer 28

blue-green

Question 29

How is Uranus’s axis tilt

Answer 29

almost parallel to its plane

Question 30

What makes Neptune a bluer color than Uranus

Answer 30

it has 3% methane

Question 31

How many moons does Neptune have

Answer 31

13

Question 32

What is Neptune’s largest moon

Answer 32

Triton

Question 33

What are the names of the three dwarf planets

Answer 33

Pluto, Eris, and Ceres

Question 34

What is the bright cloud of a comet called

Answer 34

coma

Question 35

Where do comets originate

Answer 35

Kuiper Belt

Question 36

When meteoroids enter earth’s atmosphere, what are they called

Answer 36

shooting stars

Question 37

When a meteor strikes earth’s surface what are they called

Answer 37

meteorite

Question 38

What does an AU stand for

Answer 38

Astronomical Unit

Question 39

What is an AU equal

Answer 39

150 million kilometers