Solar System Part 2

Front 1

Which planets do not have solid surfaces?

Back 1

Jupiter, Saturn, Uranus and Neptune

Front 2

Which planet is furthest from the sun, what type of surface does it have and how is it now classified?

Back 2

Pluto, rocky, dwarf planet

Front 3

All Gas Giants have many ______, and ______, which are thin disks made of small particles of ice and rock.

Back 3

moons, rings

Front 4

_______ is the largest of all planets; its mass is about ___ times the mass of all other planets combined.

Back 4

Jupiter, 2.5

Front 5

Jupiter's atmosphere is thick and made mostly of ________ and _____.

Back 5

hydrogen and helium

Front 6

_______, the Giant Red spot on Jupiter, is a storm larger than ______.

Back 6

Stormy, Earth

Front 7

Describe Jupiter's structure.

Back 7

probably a dense core of rock and iron with a thick mantle of liquid

Front 8

Jupiter has __ (number) large moons that are all larger than Earth's moon and _______s of smaller moons.

Back 8

4, dozens

Front 9

What are Io, Europa, Ganymede and Callisto?

Back 9

Jupiter's 4 largest moons.

Front 10

________ probes show that Saturn has a thick atmosphere of mainly ______ and ______, like Jupiter. Mass of Saturn is less than that of ________.

Back 10

Voyager, hydrogen and helium, water

Front 11

Which planet has the most spectacular rings?

Back 11

Saturn

Front 12

One of Titans moons, called ____, is larger than Mercury. It has ___ (number) other moons that are smaller, but sitll over 1,000 km in diameter.

Back 12

Titan, 4

Front 13

Uranus is ___ times larger than Earth and is blue-green due to traces of _______ in the atmosphere.

Back 13

4, Methane

Front 14

Voyager sent back 2 images of Uranus that showed only a few _______.

Back 14

clouds

Front 15

Uranus is claculated to rotate in about ___ hours and is tilted about ____ degrees from vertical.

Back 15

17 hours, 90 degrees

Front 16

Uranus' five largest moons have ____, ______ surfaces and _____ flows.

Back 16

icy, cratered surfaces and lava flows

Front 17

Neptune is similar in size and color to _________.

Back 17

Uranus

Front 18

Neptune has _____ on its surface and _______ in its atmosphere.

Back 18

clouds, storms

Front 19

Neptune was discovered as a result of a mathematical prediction based on what?

Back 19

Uranus' orbit

Front 20

Neptune has at least ___ (number) moons the largest of which is ________ which has a thin ________.

Back 20

13, Triton, atomosphere

Front 21

Which outer planet has a solid surface that is much denser than the other outer planets?

Back 21

Pluto

Front 22

Pluto is smaller than ______'s moon. It has ____ known moons, the largest is called _______.

Back 22

Earth, 3, Charon

Front 23

________ orbits the sun every 248 years and part of its orbit actually falls inside _________'s orbit.

Back 23

Pluto, Neptune

Front 24

______ are like a dirty snowball.

Back 24

Comets

Front 25

Comets orbit in very large ___________.

Back 25

ellipses

Front 26

The two parts of a comet are its ________ and its _____.

Back 26

head, tail

Front 27

A comet's head is made up of a ______, which is the solid inner core, and a _________, which is the cloud of dust and gas that form a fuzzy layer around the solid inner core.

Back 27

nucleus, coma

Front 28

A comet's tail has a ____ tail and a _____ tail which point away from the _____.

Back 28

gas, dust, sun

Front 29

What are two origins of comets?

Back 29

Kuiper belt, Oort cloud

Front 30

______ belt is a donut shpaed region between Neptune and about 100 times Earth's distance from the sun

Back 30

Kuiper

Front 31

_______ cloud is a spherical region that surrounds the solar system out to about 1,000 times the distance between Pluto and the Sun

Back 31

Oort

Front 32

_________ are rocky objects which are too small to be considered planets.

Back 32

Asteroids

Front 33

Asteroid _____ is made up of most asteroids that revolve around the sun between the orbits of _____ and _______.

Back 33

belt, Mars and Jupiter

Front 34

_________ are chunks of rock or dust in space that come from comets or asteroids.

Back 34

Meteoroids

Front 35

________ occur when meteorides enter Earth's atmosphere and create a streak of light

Back 35

Meteors

Front 36

_____ are meteors that strike the Earth's surface.

Back 36

meteorites

Front 37

____________ life is life that exists other than on Earth

Back 37

Extraterrestrial

Front 38

Life on Earth is made up on one or more ____, takes in ______ and uses it to grow and develop and gives off ______.

Back 38

cell, energy, wast

Front 39

The "Goldilocks Conditions" that are needed for life include what three conditions?

Back 39

liquid water, suitable temperature range and atmosphere

Front 40

Extreme Conditions are conditions on earth that at one time were thought not able to __________ ______.

Back 40

support life.

Front 41

Name the one planet and one of Jupiter's moons that scientist believe may now or in the past have been able to support life.

Back 41

Mars, Europa

Front 42

Why do scientists believe Mars may once have been able to support life?

Back 42

evidence that it once had liquid water

Front 43

Why do scientists think Europa might now have life?

Back 43

Europa has a frozen surfacev with giant cracks due to volcanic activity. Scientists think that water might exist under the ice.