Solar System (Inner Planets)

How many moons does Neptune have?

13 known moons

What is a Meteoroid?

A boulder size space debris that is falling at a Planet.

What is a Meteorite?

A meteoroid that has met with the ground and survived.

What causes the seasons on Earth?

Axial tilt

What are the five layers of the Earth?

Crust, upper Mantle, Mantle, Outer core, Core.

Which inner planet has the fastest rotation, and strongest gravitational force?

Earth

Which is the densest planet in our solar system?

Earth

True or False: Mars is warmer than Earth

False, because Mars is further away from the sun.

What is believed to be the cause for loss of water in Venus?

High temperatures, causing water to evaporate.

What are the two main elements of the outer Planets' composition?

Hydrogen and Helium

What are the three main elements in Mar's core?

Iron, Nickel, and sulfur.

What is another way to say Outer Planets

Jovian Planets, meaning Jupiter like.

Which planet has the fastest rotation in the entire solar system?

Jupiter

Which planet has the strongest gravitational pull in the solar system?

Jupiter

What are the outer Planets?

Jupiter, Saturn, Uranus, and Neptune.

Mercury's _______ ________ is what deflects the solar wind.

Magnetic field/ magnetosphere

The deepest valley in the solar system, the Valles Marineris system of valleys is found on which planet?

Mars

The highest mountain in the solar system, the Olympus Mons, is located on which planets?

Mars

Which planet has no global magnetic field but has powerful regions of magnetic fields.

Mars

Which planet has the largest dust storms?

Mars

Which Planet has the highest eccentricity?

Mercury

Which planets most closely resemble the moon with its appearance of craters?

Mercury

What are the four inner planets?

Mercury, Mars, Venus, Earth

Which of the outer planets have a fragmented rings?

Neptune

Which planet's gravity dominates the Kuiper belt

Neptune

What are the names of Mars' two moons

Phobos and Deimos

Both Jupiter and Saturn have _______, _______ cores.

Small dense

What compound forms the reflective clouds of Venus?

Sulfuric Acid

Another name for Inner Planets is_____________

Terrestrial Planets

What is a Meteor?

The visible path of a Meteoroid

True or False, Mercury is an exceptionally dense planet.

True, Mercury has a large iron core relative to its size. Mercury has the second highest density in the solar system.

True or False: Saturn has 62 known Moons.

True.

True or False: Saturn is an oblate spheroid, that flattens at the poles and bulges at the equator.

True.

Which Outer planet has the lowest internal heat?

Uranus

Which two planets are called ice giants?

Uranus and Neptune

Which Inner Planet has a dusty dry desertscape surface with slab like rocks that are periodically refreshed by volcanism?

Venus

Which Planet has the highest atmospheric density?

Venus

Which is the only planet in our solar system to rotate in retrograde?

Venus

Why is Venus' atmosphere mainly consist of Carbon Dioxide?

Venus has no carbon cycle to lock carbon back into rocks and other surface features.

Nearness to the sun alters the _________ of Mercury from Earth, which is also responsible for its phases.

Visibility

Does water exist on Mars?

Yes, Mars have ice caps on the ends of its poles.

What is a dwarf planet?

a dwarf planet is a large asteroid that does not fill the qualifications to be a planet.

What are the clouds of Jupiter made of?

ammonia crystals

What separates the Inner Planets from the Outer planets?

an asteroid belt

Jupiter and Neptune's Great Dark Spots are actually sites of persistent ________ ___________

anticyclonic storms

What are trojan asteroids?

asteroids that share an orbit with a larger planet or moon.

Where is Saturn's Magnetic field strongest?

at its equator.

Why is weather more extreme on Mars than it is on Earth?

because Mar's orbit is more elongated than Earth's ellipse.

What are asteroids made of?

celestial bodies of which they broke off from.

Mercury's eccentricity causes a more _______orbit than Earth's.

circular

How many moons does Jupiter have?

four, Io Europa and Ganymede

What are the rings of Saturn composed of?

ice particles, rocky debris, and dust

The Caloris basin is an _______ _________ located on the planet __________.

impact crater/Mercury

What is the difference between Inner and outer planets?

inner planets are rocky in surface and outer planets are gaseous.

Mar's reddish appearance somes from its abundance of_____ ______

iron oxide

Mercury has an _______and___________core.

iron/molten

Unlike Earth's moon, Mar's moons are__________ and __________

irregularly shaped and small

Why is it not possible for Mars to sustain liquid water?

it has too low of an atmospheric pressure

Describe Uranus' axial tilt

it is almost horizontal

Earth's tectonic plates are located in the ________

lithosphere

What are the two main element's of Earth's atmosphere?

nitrogen and oxygen

Does Mercury have active tectonic plates?

no

Do Mars have active tectonic plates?

no, but they were once active, the olympus mons is an extinct shield volcano.

what is another word for asteroid?

planetoid

the lack of water on venus disallows the crust to subduct because it is too viscous, which is evidence that there are no ______ ________ on Venus.

plate tectonics

All of the Outer Planets have ______ systems

ring

terrestrial planets have ____ surfaces.

rocky.

What are the three main ways in which Venus is similar to Earth?

similar size, gravity, and bulk composition

Why does Mars have a low atmospheric pressure?

solar winds interact directly with Mar's ionosphere.

what causes planetary rings form?

strong gravitational pulls