Download Solar System Notes

Solar System Notes
Pg. 192-198
What is our solar system?
A solar system is made up of a STAR and
the objects moving around it.
A planet = a large body of rock or gas with
a nearly-round shape that revolves (or moves)
around a star.
All planets:
1.) rotate (turn)
2.) orbit (revolve in a nearly circular path)
The earth takes 365 days (1 Year) to
complete one orbit around the sun.
*The farther away a planet is from the
sun, the longer the orbit. (makes a wider circle)
Planets DO NOT make their own light.
Sunlight reflects off the planets.
What are the inner and outer
planets?
The four planets closest to the sun are
called the inner planets.
Mercury, Venus, Earth, Mars




Smallest planets
Solid
Made of rocky material
Warmer (because closer to the sun)
The four plants farthest from the Sun are
called the outer planets.
Jupiter, Saturn, Uranus, Neptune
 “gas giants”
 made of gas
 Jupiter is the LARGEST planet
**See page 194-195 for pictures and more details!
Order of Planets from Sun:
(closest) Mercury- Venus- Earth- MarsJupiter- Saturn- Uranus- Neptune
(furthest)
Moon
What are other objects in our solar
system like?
Planet
Moons:
 Moon = an object that revolves around
a planet.
 Some planets have 0, 1 or many moons
 No water or living things
 Moon’s surface is covered with craters
(hollow ground or pits)
The Sun:
 Sun = a star at the center of OUR solar
system.
 Star = ball of hot, glowing gases
 Temperature inside the sun = 15 million
degrees Celsius
 Provides the heat the Earth needs to
survive!
What else is in our solar system?
*pictures on pg. 198
Asteroids - chunks of rock or metal
Comets - mostly ice mixed with bits of rock
or dust (have long, narrow orbits)
Meteors - small pieces of metal or rock that
have broken off from comets or asteroids.
Star
Lets Practice!!
Answer the following questions using your
notes.
1.) Which planet is closest to the sun?
A Earth
C Mercury
B Saturn
D Uranus
2.) What is the largest planet in our Solar
System?
A Earth
C Jupiter
B Saturn
D The Sun
3.) The planets in our solar system all…
A orbit the sun
C produce light and heat
B have moons
D have a system of
rings
Solar System Notes
Pg.______________
What is our solar system?
A __________________ is made up of a STAR
and the objects moving around it.
A planet =
________________________________________________
________________________________________________
____________
All planets:
1.) rotate (_______________)
2.) ______________ (revolve in a nearly
circular path)
What are the inner and outer planets?
The four planets closest to the sun are called
the _________________.
Mercury, Venus, Earth, Mars
 ___________________________
 Solid
 Made of rocky material
 ________________________________
The four plants farthest from the Sun are called
the outer planets.
________, ________, ________, _______
 “gas giants”
 made of gas
 ________________________________
The earth takes ______________ (1 Year) to
complete one orbit around the sun.
*The ______________________ a planet is
from the sun, the longer the orbit. (makes a
wider circle)
Planets DO NOT make their _____________.
_____________ reflects off the planets.
**See page 194-195 for pictures and more details!
Order of Planets from Sun:
(___________) Mercury- Venus- Earth- MarsJupiter- Saturn- Uranus- Neptune (___________)
What are other objects in our solar system
like?
Moon
Planet
Moons:
 ____________ = an object that revolves
around a planet.
Star
 Some planets have ________________
 No water or living things
 Moon’s surface is covered with craters
(__________________________)
The Sun:
 ___________ = a star at the center of OUR
solar system.
 ___________= ball of hot, glowing gases
 Temperature inside the sun = 15 million
degrees Celsius
 Provides the heat the Earth needs to
survive!
What else is in our solar system?
*pictures on pg. 198
Asteroids - __________________________
___________ - mostly ice mixed with bits of rock or
dust (have long, narrow orbits)
_____________ - small pieces of metal or rock that
Lets Practice!!
Answer the following questions using your
notes.
1.) Which planet is closest to the sun?
A Earth
C Mercury
B Saturn
D Uranus
2.) What is the largest planet in our Solar
System?
A Earth
C Jupiter
B Saturn
D The Sun
3.) The planets in our solar system all…
A orbit the sun
C produce light and heat
B have moons
D have a system of
rings