Ch 30.3, 30.4

Question 1

Jupiter

Answer 1

fifth planet from the sun

Question 2

Saturn

Answer 2

sixth planet from the sun

Question 3

Uranus

Answer 3

seventh planet from the sun

Question 4

Neptune

Answer 4

eighth planet from the sun

Question 5

dwarf planet

Answer 5

nearly round objects in orbit around the sun

Question 6

comet

Answer 6

composed of dust and rock particles, frozen water, methane, and ammonia

Question 7

asteroid

Answer 7

rocky objects formed from material similar to the material in planet composition

Question 8

meteoroid

Answer 8

sand to boulder sized objects in the solar system

Question 9

Sedna

Answer 9

labeled in a distant planetoid

Question 10

extraterrestrial life

Answer 10

life beyond earth

Question 11

which space probe flew past Jupiter in 1979?

Answer 11

Voyager 1 and 2

Question 12

Which space probe reached Jupiter in 1995?

Answer 12

Galileo

Question 13

How many known moons does Jupiter have?

Answer 13

63

Question 14

What did the Voyager probes and Galileo study?

Answer 14

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

Question 15

What are the 4 Galilean moons?

Answer 15

Ganymede, Callisto, Io, 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 the surface?

Answer 17

Europa, Callisto, and Io

Question 18

Which Galilean moon 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

It has the most complex and largest ring system

Question 20

What are Saturn’s ring made out 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

Collect data about Saturn, the ring, and many moons

Question 25

What was Huygen's mission?

Answer 25

Descend on Titan

Question 26

Which space probe is the only probe to study Uranus?

Answer 26

Voyager 2

Question 27

How many moons does Uranus have?

Answer 27

27

Question 28

How is Uranus's axis tilted?

Answer 28

Almost parallel with the plane that other planets orbit

Question 29

What color is Uranus?

Answer 29

blue-green

Question 30

Which space probe is the only probe to reach Neptune?

Answer 30

Voyager 2

Question 31

What makes Neptune a bluer color than Uranus?

Answer 31

It has 3% methane

Question 32

How many moons does Neptune have?

Answer 32

13

Question 33

What is Neptune's largest moon?

Answer 33

Triton

Question 34

What are the names of three dwarf planets?

Answer 34

Pluto, Eris, and Ceres

Question 35

What is the bright cloud of a comet called?

Answer 35

Coma

Question 36

Where do comets orignate?

Answer 36

Kuiper belt or oort cloud

Question 37

When meteoroids enter the Earth's atmosphere what are they called?

Answer 37

Shooting stars

Question 38

When a meteor strikes Earth's surface what are they called?

Answer 38

Meteorites

Question 39

What does AU stand for?

Answer 39

astronomical unit

Question 40

What does AU equal?

Answer 40

150 million kilometres