Transcript 2-Seasons Adapted AM - vhs-ees-am

Warm-Up
(in your JOURNAL)
1. During which months do you think the following pictures were
taken?
(A)
(B)
2. Where does almost all the heat on Earth come from? What
specific type of heat transfer allows this heat to get to Earth?
(conduction, convection, or radiation?)
3. If an object is closer to the sun, do you think it will have a higher
or lower temperature?
OBJECTIVE
SWBAT evaluate how planetary motion
leads to season changes.
AGENDA
Warm Up
The Sun and the Seasons Video
Revolution vs. Rotation? Demo
Guided Practice Worksheet
The Seasons Foldable
Postcard
Exit Ticket
QUOTE OF THE DAY
“Nobody can go back and start a new
beginning, but anyone can start today
and make a new ending.”
~Maria Robinson
The planet…What do we know?
• All the planets in our solar system
revolve around the sun.
• But how?
• Kepler discovered elliptical planetary
orbits
A
B
C
Kepler’s Law Applied
• http://www.windows2universe.org/phys
ical_science/physics/mechanics/orbit/o
rbit_shape_interactive.html
6
VIDEO
(while watching, complete
your video guide)
• The Earth rotates on its axis
• 1 full rotation = one day
• Looking at the picture below, why is the left hemisphere
experiencing a warm day and the right hemisphere
experiencing a cooler night?
DAY
Comparing
Rotations:
warmer
Earth=24 hrs
Mercury=59 days
Pluto=6 days
NIGHT
cooler
The Earth orbits (revolves around) the sun
How long is one full revolution?
Comparing
Revolutions:
Earth=365.25
days
Mercury=88 days
Oluto=248 years
• So this is what the Earth looks like right?
axis
• And it revolves around the sun like this right?
This shows
orbit
This shows
orbit
WRONG!
• Earth’s axis is not straight
– Earth’s axis is tilted 23.5° from vertical
23.5° tilt
13
• The Earth’s orbit actually looks like this
This shows
orbit
Like What?
http://www.classzone.com/books/earth_science/terc/content/visualiza
tions/es0408/es0408page01.cfm?chapter_no=visualization
15
LETS SEE THIS!!
cooler
warmer
• Why does that matter?
The Earth’s tilted axis allows us to have
seasons
• 4 seasons based on Earth’s position to the sun
Spring
Summer
Fall
Winter
• So what does this look like for us, in the Northern
Hemisphere??
For each part of the demo, fill
out your chart based on what
is represented by each
specific location:
1) tilt (towards/away)
2) Radiation
(high/neutral/low)
3) Temperature
(warm/moderate/cold)
4) Season
FAST FACT
• The star "Lucy" in constellation
Centaurus is actually a huge cosmic
diamond of 10 billion trillion trillion
carats.
Tilt
(towards/
neutral/away)
Radiation
Temperatur Season
(high/neutral/lo
e (warm/
w)
moderate/
cool)
• Winter
• When the Earth is tilted away from the sun.
• Coldest temperatures
Top tilted away
from sun=
winter
• Spring
• Moderate
(medium)
temperatures
• Starts cold and
gets warmer as
that part of Earth
is tilted toward the
sun
Beginning to be
tilted toward the
sun= spring
• Summer
• When the Earth is titled toward the sun.
• Warmest temperatures
Top titled
toward the sun=
summer
Autumn (fall)
• Moderate
(medium)
temperatures
• Starts warm and
gets cooler as that
part of Earth is
tilted away from
the sun
Beginning to be
tilted away from
the sun= spring
• The equator divides the earth into top and bottom halves
(Northern and Southern hemisphere)
• Because of the tilt of the earth, the hemispheres have
opposite seasons.
26
FOLDABLE
FRONT
WINTER
SPRING
AUTUMN
SUMMER
INSIDE
DRAWING
DRAWING
BACK
Draw a picture to show the Earth
orbiting around the sun. Draw the
Earth in the 4 main positions.
Use arrows to show the direction the
Earth is moving.
On your arrows, describe what the
temperature is doing.
Label the four seasons.
DESCRIPTION
27
POSTCARD
• Pick a place on the map you will travel to over the
summer.
• Write a postcard telling your friend what season it is
there. Explain why it is that season. Describe what the
temperature is like.
• For the picture on your postcard (on the back), draw
what the Earth and sun would look like for this season.
1
1.
2.
3.
4.
Alaska
South Africa
Brazil
England
4
3
2
28
EXIT SLIP
HANDOUT!!!