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Transcript
145
2/7/2017
Solar System Notes
EQ: Why is our solar system a system?
Solar System Notes
Practice/Application:
Starter:
What do you know about the
solar system?
Exit:
Connection :
146
2/7/2017
Feb 7, 2017
AGENDA
6.11A: describe the physical
properties, locations, and
movements of the Sun, planets,
Galilean moons, meteors, asteroids,
and comets.
6.11B: understand that gravity is
the force that governs the motion
of our solar system.
6.11C describe the history
and future of space
exploration, including the
types of equipment and
transportation needed for
space travel.
1 Starter
2. Notes
3. Exit
Table of Contents
Date
Lecture/ Activity/ Lab
1/17
Balanced and Unbalanced Forces
1/18
Balanced and Unbalanced Forces Lab
1/19
Interpreting Graphs
1/20
Matching Speed and Motion Graphs
1/23
Walking Lab II
1/24
Simple Machines Pre-view
1/25
Simple Machine Notes
1/26
Simple Machines Lab
1/31-2/1
Solar System Webquest
Page
123-124
125-128
129-130
131-132
133-134
135-136
137-138
139-140
141-142
145
2/7/2017
Solar System Notes
EQ: Why is our solar system a system?
Starter:
What do you know about the
solar system?
Exit:
146
Solar System Notes
2/7/2017
Practice/Application:
Glue Solar system notes here
Connection :
The Solar System
Our planet resides within the
Milky Way Galaxy. The Milky
Way is a collection of some 200
billion stars.
One of the many
stars in the Milky
Way is our Sun.
Captured by the
Sun’s gravity are
the Earth, other
planets,
asteroids, comets
and meteors.
Within the Solar System are
other small systems. Each one
of the systems interacts with
others to form our entire Solar
System.
For example, the Moon and
Earth interact to cause the
ocean tides on Earth.
The Earth is part of the planetary
system, which is part of the Solar
System. As you can see from the
diagram, our universe consists of
systems within systems.
Milky Way Galaxy
Solar System
Planets
and minor
Bodies
Earth/Moon
System
The Solar System includes the
Sun, planets, natural satellites of
planets (moons) and minor
objects called asteroids, comets
and meteoroids.
Notice that stars
other than the
Sun are not
considered part of
the solar system.
The sun powers
many systems on
Earth including
photosynthesis,
the water cycle
and wind.
Its gravitational pull keeps the
planets from shooting off into
space.
It also lights some of the objects
we see in space, such as the
Moon.
Without the energy from the Sun,
the Earth would become a frozen
and dead world.
The sun gets
its energy
through a
process known
as nuclear
fusion.
During nuclear
fusion,
hydrogen and
helium gases
fuse and
release a
tremendous
amount of heat
and light.
This is how all stars get their
energy and how they are able to
produce their own light.
Planets are large bodies that
orbit a star.
Planets shine by reflected
light.
If the sun stopped
producing energy, we
would not be able to see
planets from Earth in
space because there
would be no light to
reflect off of the planets.
Planets have two kinds of
motion.
earth
rotation
One is rotation, where the
planet spins on its axis.
The other
type of
motion is
revolution.
Revolution
means that
the planet
moves in an
orbit around
a star.
The time it takes
for a planet to
rotate one
complete spin on
its axis is called
period of
rotation or a day.
earth
rotation
On earth, one rotation is equal
to about 24 hours. Some
planets spin faster than Earth,
so a day would be much
shorter.
The time it takes for a
planet to complete one
revolution around a star
is called the period of
revolution.
A period of
revolution is equal
to one year on that
planet.
On earth, it takes 365 ¼
days for the earth to
make one revolution
around the sun.
sun
Rotation on an
axis
Revolution
around Sun
Natural satellites are
called moons. These
are bodies that orbit a
more massive body.
Earth has
only one
natural
satellite,
the Moon.
Other planets,
such as
Jupiter, have
more than
one moon.
Jupiter has 63
moons.
Moons have the
same kind of
motion, rotation
and revolution, as
planets.
Our moon
rotates one time
every 27.3 days.
Strangely, it also
revolves once around
the earth every 27.3
days. This means its
day and year are the
same length!
Asteroids are rocky
fragments. They vary in
size and are found in a
belt between Jupiter and
Mars.
Sometimes they wander out of
the asteroid belt.
They may crash into Earth and
scientists believe an asteroid
impact on earth was responsible
for the extinction of the
dinosaurs.
Comets are made of ice, dust
and gases.
They travel around the sun in
very large oval shaped orbits.
As the comet travels near the sun, the
heat causes materials in the comet to
vaporize and glow. The glowing
material trails for millions of miles
behind the comet. This trail is called
the comet’s tail.
Meteoroids are small particles of
rock and dust that move through
the solar system. When these
particles enter the earth’s
atmosphere, they run into air
particles.
Friction from the encounter
causes the particles to heat
up and glow with light.
As it passes through Earth’s
atmosphere, the meteoroid begins
to burn.
We call a burning meteoroid a
meteor. Meteors are
sometimes called shooting
stars.
But they are not stars. Most
meteors never reach the
surface of the earth.
If the meteor does reach the
earth’s surface, it is called a
meteorite.
Meteorites
have
created
craters on
earth and
many
craters on
the Moon.
145
2/7/2017
EQ: Why is our solar system a system?
Starter:
What do you know about the
solar system?
146
Solar System Notes
Solar System Notes
2/7/2017
Practice/Application:
Glue Solar system notes here
Connection :
Planets
Exit:
What
does it
orbit?
Where is
it found?
What
does it
look like?
Example
What is
the best
thing
about it?
Moons
Sun
Asteroids
Comets
Connection: Fill in the missing
information
Planets
What does
it orbit?
Where is it
found?
What does
it look like?
Example
What is the
best thing
about it?
Moons
Sun
Asteroids
Comets
145
2/7/2017
EQ: Why is our solar system a system?
Starter:
What do you know about the
solar system?
146
Solar System Notes
Solar System Notes
2/7/2017
Practice/Application:
Glue Solar system notes here
Connection :
Planets
Exit:
Summarize what you learned
today in 4-5 sentences.
What
does it
orbit?
Where is
it found?
What
does it
look like?
Example
What is
the best
thing
about it?
Moons
Sun
Asteroids
Comets