space

Question 1

Meteoroid, Meteor, Meteorite diffrences

Answer 1

Meteoroid → When a rock is trapped and pulled by Earth’s Gravity

Meteor → When the rock enters the Earth’s Atmosphere

Meteorite → When the rock hits the surface of the Earth

Question 2

How many planets are there and what is the order

Answer 2

8 planets
(in order)
Mercury,Venus,Earth,Mars,Jupiter,Saturn, Uranus, Neptune.

Question 3

What are the inner planets also known as and what are they.

Answer 3

They are also known as Terrestrial Planets and they include Mercury Venus Earth Mars

Question 4

What are the outer planets also known as and what are they.

Answer 4

They are also known as Gas Giants and they include Jupiter Saturn Uranus Neptune

Question 5

What are the Inner planets realative size, temp,type of surface,number of moons and is there oxygen present in the atmosphere

Answer 5

They are realativly small.

They are realativly hot

Rocky surface

Not many moons

Oxygen in the atmosphere

Question 6

What are the outer planets realative size, temp,type of surface,number of moons and is there oxygen present in the atmosphere

Answer 6

They are realativly big

They are realativly cold

No solid surface (gaseous)

Many moons

No oxygen in the atmosphere

Question 7

What is the unit that we use to meausre distance in the solar system

Answer 7

It is au (atomic unit) it is about 148,000,000km or 148 million km.

ex. Mars is 1.52AU from the sun so it is 224.96 million km away from the sun

(1.52*148000000=224960000)

Question 8

What constellation is the big and little diper apart of.

Answer 8

The great bear

Question 9

What does the big dipper “point” to

Answer 9

It points to the north star

Question 10

What is the north star also known as

Answer 10

Polaris

Question 11

THings in space from least to most specific

Answer 11

UNIVERSE

GALAXIES

SOLAR
SYSTEM

PLANETS &
CELESTIAL
OBJECTS

Question 12

What are stars

Answer 12

A massive ball of superheated gases that gives off light and heat

Question 13

What is the brightest star in the night sky

Answer 13

Sirius

Question 14

What is a planet

Answer 14

A planet is a large, round celestial
object that travels around a star.
● Non-luminous
● Reflect light from stars

Question 15

What are dwarf planets

Answer 15

A celestial body that:
a) orbits the Sun
b) is large enough to have self-gravity (round), BUT
c) cannot clear its orbit (gravitational influence is
insignificant)

Question 16

What are asteroids

Answer 16

Rocky (Irregular-shaped) with
craters due to other impacts
with other asteroids that orbit
the Sun but are too small to
be considered planets.
● Composed of rock and
minerals from the formation
of the Solar System.
● Asteroid belt - ring of asteroids
between Mars and Jupiter

Question 17

Where is the kuiper belt and what are KBO (kuiper belt objects)

Answer 17

Made up of rock
and ice objects,
past the orbit of
Neptune
● 20 times larger
than the Asteroid
Belt

Question 18

Where is the asteroid belt

Answer 18

It is bettwen mars and jupiter

Question 19

What is a comet

Answer 19

Icy objects that orbit the Sun.
○ “Dirty snowball” → dust and other particles
● When the comet enters the inner solar system, it
starts to melt and creates the comet’s “tail”.
● Short period: takes a few years to orbit the Sun
and originate in the Kuiper Belt.
● Long period: takes thousands of years to orbit the
Sun and originate in the Oort Cloud.

Question 20

What is the oort cloud

Answer 20

Defines the gravitational boundary of the
Solar System and contains billions of comets

Question 21

What it is called when the moon is “getting bigger”

Answer 21

Waxing

Question 22

What is it called when the moon is “getting smaller”

Answer 22

Waning

Question 23

What are the 8 moon stages

Answer 23

New moon (cannot see the moon because it is above the earth meaning the light isnt refected onto the earth)

Waxing cresent (crescent moon left side dark getting bigger)

First quarter (left side dark half dark half lit)

Waxing Gibbous (mostly lit dark on left side)

Full moon (fully visible)

Waning Gibbous (crescent moon getting smaller)

last quarter (half lit right side dark)

Waning crescent( crecent moon right side dark)

Question 24

What is a lunar eclipse

Answer 24

It is when the Earth is in the middle of the moon and the sun allowing you to faintly see a red moon in the middle of the night

Question 25

What is a solar eclipse

Answer 25

It is when the Moon is in bettwen the earth and the sun and because it is 400 times smaller than the sun but it is 400 times closer it appears as the same size and the sun is fully covered up by the moon causing it to do dark during the day.

Question 26

Key characteristics for each planet

Answer 26

Mercury: Closest and smallest no moons

Venus: No moons. Brightest, hottest.

Earth: 1 moon. Terrestrial.

Mars: 2 moons. Terrestrial. May have once supported life.

Jupiter: Biggest. Gas giant

Saturn: Has rings. Gas giant

Uranus: poles are on the left and right. Gas giant. Coldest planet

Neptune. Farthest planet. Gas giant

Question 27

What are asteroids

Answer 27

Asteroids are small celestial objects in the Solar System composed
of rock and metal.

Although they also orbit the Sun, they are too small to be
considered planets.

The vast majority of asteroids lie in an area known as the asteroid
belt, located between the orbits of Mars and Jupiter. Asteroids vary
in size and can have a diameter of up to 950 km.

The largest asteroids are round, but most are irregularly shaped.