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Planetary Systems Unit
Part 3: The Solar System
Objects in our Solar System orbit the Sun, have distinctive
physical characteristics, and move in orderly and predictable motions.
Key Learning:
How do the objects in our
Solar System interact with each other?
Unit Essential Question:
Concept: The Earth Moon and Sun
System
Planetary Systems Unit
Part 3: The Solar System
Lesson Essential Questions:
1. How do we write our galactic
address?
2. How do scale models help us
represent our Solar System?
3. How is life in space different from
Earth?
4. Why is Earth the only planet known
to contain life in our Solar System?
You will be able to
answer these
questions by the
end of Part 2
Vocabulary:
Galactic Address
Gravity factor
Weight
Habitable
You should already know what these
words mean. You will be able to use
them in your responses and
discussions throughout the unit
Planetary Systems Unit
Part 3: The Solar System
Homework Assignment #6
In the Planetary Systems Readings and Assignments…
Read pages 12 and do the
assignment on page 12
Planetary Systems Unit
Part 3: The Solar System
Warm Up #1: If you were a bird flying over Talley Middle School, what would
it look like when you looked down? Draw what you would see…
Planetary Systems Unit
Part 3: The Solar System
Galactic Address
Planetary Systems Unit
Part 3: The Solar System
Powers of 10
Planetary Systems Unit
Part 3: The Solar System
Complete Summary #1:
Here are three lists of astronomical objects. Choose the list that
shows the objects nearest to Earth first and the objects furthest from
Earth last.
a. Stars, the dwarf planet Pluto, galaxies
b. Stars, galaxies, the dwarf planet Pluto
c. The dwarf planet Pluto, stars, galaxies
Suppose you were to look at the solar system from a location well outside
the orbit of Pluto. Most of what you would see in your picture would be…
a. The planet Jupiter
b. The planet Saturn
c. Comets
d. Empty space
Planetary Systems Unit
Part 3: The Solar System
Homework Assignment #7
In the Planetary Systems Readings and Assignments…
Read pages 13 and do the
assignment on page 13
Planetary Systems Unit
Part 3: The Solar System
Warm Up #2: Suppose you were standing on the surface of Venus and
could see through its thick clouds…..
A. How would the Earth look?
a. a disk with visible features (clouds and continents)
b. a disk that the eye could make out, but too small to see visible features like
clouds and continents
c. pale blue dot
B. What would be the configuration of the Earth and Moon?
a. right next to each other in the sky
b. far apart from each other in the sky
Planetary Systems Unit
Part 3: The Solar System
Planet Walk
Planetary Systems Unit
Part 3: The Solar System
Complete Summary #2:
If it takes you one minute to walk 100 meters, how long would it take you to
walk from Earth to Mars?
Planetary Systems Unit
Part 3: The Solar System
Homework Assignment #8
In the Planetary Systems Readings and Assignments…
Read pages 14-15 and do
the assignment on page 15
Planetary Systems Unit
Part 3: The Solar System
Life In Space
Planetary Systems Unit
Part 3: The Solar System
Warm Up #3: What planet are you most interested in learning about and why?
Planetary Systems Unit
Part 3: The Solar System
How Much You Weigh at Different Locations?
How much you weigh depends on the
force of gravity at your location. The
table below shows what the force of
gravity would be at different locations in
our Solar System based on a value of 1
on the Earth’s surface.
For example, if you weighed 100 pounds
on Earth, you would weigh 17 pounds on
the Moon. 100 pounds (your Earth
weight) multiplied by 0.17 (the gravity
factor for the moon) = 17 pounds.
Remember, your mass does not change at
different locations. Your mass remains
the same; it is your weight that changes
due to the force of gravity on the
different planets.
Planetary Systems Unit
Part 3: The Solar System
Your Weight on Earth (or pick a weight) 195 pounds
Location
Gravity Factor at
surface
My weight at this
location
Sun
(where Earth=1)
27.9
5440.5 pounds
Mercury
0.37
Venus
0.88
Earth
1.00
Moon
0.17
Mars
0.38
Jupiter
2.64
Saturn
1.15
Uranus
1.15
Neptune
1.12
Dwarf planet Pluto
0.04
7.8 pounds
Planetary Systems Unit
Part 3: The Solar System
Jump, Jump, Jump Around
Problem: How does the Mass of a Planet affect how high you can jump?
Manipulated Variable: (1 point) __________________________
Responding Variable: (1 point) __________________________
Hypothesis: (1 point)
__________________________________________________________
__________________________________________________________
Jump
Height (cm)
Trial #1
Trial #2
Trial #3
Average
Jump
From Table 1!
Planetary Systems Unit
Part 3: The Solar System
Location
Mass of the
Solar System
object 1023 kg
Mercury
3.3
X 2.65
Venus
48.7
X 1.10
Earth
59.8
X1
Mars
6.42
X 2.64
Jupiter
19000
X .039
Saturn
5690
X 0.94
Uranus
868
X 1.10
Neptune
1020
X 0.88
Dwarf Planet 0.129
Pluto
X 13.2
Sun
X 0.04
19,900,000
Average Height Conversion for
of Your Jump
the Height of
on Earth (cm)
Jump
Jump Height
on the location
(cm)
Planetary Systems Unit
Part 3: The Solar System
Complete Summary #3:
If you were to visit any one of the planets (even Dwarf planet Pluto), which
would it be and why?