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Flashcards in 30.3 Deck (39)
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1
Q

fifth planet from the Sun

A

Jupiter

2
Q

sixth planet from the Sun

A

Saturn

3
Q

seventh planet from the Sun

A

Uranus

4
Q

eighth planet from the Sun

A

Neptune

5
Q

nearly round objects in orbit around the Sun that are not satellites and that have not cleared the debris in their orbit

A

dwarf planets

6
Q

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

A

comet

7
Q

rocky objects formed from material similar to materials in composition

A

asteroids

8
Q

sand to boulder sized objects in the solar system

A

meteoroids

9
Q

labeled a distant planetoid

A

sedna

10
Q

life beyond earth

A

extraterrestrial planets

11
Q

Which space probes flew past Jupiter in 1979

A

Voyager 1 and Voyager 2

12
Q

Which space probe reached Jupiter in 1995

A

Galileo

13
Q

What did the voyager probes and Galileo study

A

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

14
Q

How many moons does Jupiter have

A

63

15
Q

What are the 4 Galilean moons

A

Ganymede, Callisto, Io, and Europa

16
Q

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

A

Ganymede

17
Q

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

A

Ganymede, Callisto, and Europa

18
Q

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

A

Io

19
Q

What is Saturn’s most commonly known feature

A

its rings

20
Q

What are Saturns rings made of

A

particles of water-ice

21
Q

How many moons does Saturn have at least

A

60 moons

22
Q

What is the name of Saturns largest moon

A

Titan

23
Q

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

A

Cassini-Huygens

24
Q

What is Cassinis mission

A

Collected data about Saturn, it rings and it its many moons

25
Q

Which space probe is the only probe to study Uranus

A

Voyager 2

26
Q

How many moons does Uranus have

A

27 moons

27
Q

How is Uranus axis tilt

A

parallel to its plane

28
Q

What color is Uranus

A

blue-green

29
Q

Which space probe is the only probe to reach Neptune

A

Voyager 2

30
Q

What makes Neptune a bluer color than Uranus

A

contains about 3 percent methane

31
Q

How many moons does Neptune have

A

13 moons

32
Q

What is Neptune’s largest moons

A

Triton

33
Q

What are the names of the Dwarf planets

A

Pluto, Eris, Ceres

34
Q

What is the bright cloud of a comet called

A

Coma

35
Q

Where do comets originate

A

Kuiper belt or the Oort cloud

36
Q

When meteoroids enter the Earths atmosphere, what are they called

A

“shooting stars” or meteor

37
Q

When a meteor strikes Earths surface, what are they called

A

Meteorites

38
Q

What does AU stand for

A

Astronomical Unit

39
Q

What is an AU equal

A

150 million km