Solar System

Question 1

Inner Planets

Answer 1

Mercury, Earth, Mars, Venus

Question 2

Outer Planets

Answer 2

Jupiter, Saturn, Uranus, Neptune

Question 3

Nebular Theory

Answer 3

The solar system developed out of an interstellar cloud of gas and dust left from a supernova

Question 4

Solar system age

Answer 4

4.6 billion years old

Question 5

How was the sun and planets formed?

Answer 5

The nebula rotated and flattened into a protoplanetary disk

Question 6

Accretion

Answer 6

Tiny bits of matter clump together under gravity

Question 7

Planetesimals

Answer 7

Irregularly shaped bodies formed by accreted matter, gain more matter to form into planets

Question 8

Sun mass

Answer 8

99.8 of all mass in solar system

Question 9

Terrestrial planets

Answer 9

Rocky, dense, close to sun, atmospheres of carbon dioxide and nitrogen

Question 10

Jovian planets

Answer 10

Gassy, light, far from sun, atmospheres of hydrogen and helium

Question 11

Mercury

Answer 11

Smallest planet, no moon, very dense with iron core, no atmosphere, longest day shortest year

Question 12

Venus

Answer 12

No mass, thick atmosphere with sulfuric acid and heat trapping, active volcanoes, hottest planet

Question 13

Earth

Answer 13

71% water, 1 moon, nitrogen and oxygen atmosphere

Question 14

Mars

Answer 14

Rusty soil, windy, past rivers/lakes, thin atmosphere of carbon dioxide, polar ice caps of carbon dioxide and water, Olympus Mons, moons (Deimos and phobas)

Question 15

Asteroid belt

Answer 15

Between orbit of Mars and Jupiter

Question 16

Jupiter

Answer 16

Great Red Spot, thick atmosphere, most moons, small ring system

Question 17

Saturn

Answer 17

Least dense planet, made of hydrogen and helium, can float on water, large rings, Titan

Question 18

Uranus

Answer 18

Rotates parallel to orbit, small ring system, hydrogen sulfide makes atmosphere smell like rotten eggs, coldest planet, Miranda moon