Download File - 5th Grade Science Almost done!!!!!!!!!

Dear Substitute
• This slide is for your information only, please start the ppt on the
next slide for the kids
• The first thing the students do when they enter the room is write
down the homework (see next slide) in stone-silence.
• After about 20 to 30 seconds of silence I tell the students “Please
begin the warm up.”
• Please go through the ppt with the students. Students will have to
write items in blue as notes in their Science Notebooks.
• Please give appropriate time for any discussion items noted in the
ppt. A timer is on the long table at the very front of the room for
timing.
• Please restart this ppt for the next substitute coming in so that they
will see this slide first and know what to do.
• Now, kindly advance to the next slide to start the ppt for the children.
• Thank you 
Goal for Today
• SWBAT demonstrate the ability to
recognize how stars are groups together
by discussing and differentiating between
galaxies and constellations.
But first….
….a quick peak at some events ahead:
- Today: Galaxies, Constellations, and the
Universe
- Tomorrow (Tuesday): Rocket launch
(postponed form last Friday)
- Wednesday: Dragon Boat Festival (no
school)
- Thursday: Chapters 13-15 Review
- Friday: Chapters 16-18 Review
Write down all BLUE text as notes
in your Science Notebook…
• Date: Monday, June 10, 2013
• Title: “Galaxies, Constellations, and The
Universe”
• Remember: you are almost in 6th
Grade…please write down the notes in a
way that makes sense to you. YES!
Please do summarize!!!!!!
Galaxy
A huge system of stars, dust, and
gases held together by gravity
• Galaxy – huge system of stars, dust and gas
held together by gravity
–
–
–
–
We are a part of the Milky Way Galaxy
Galaxies are constantly moving
Types of galaxies: spiral, elliptical, and irregular
Spiral galaxy – look like pinwheels; they have bright,
bulging middles and wispy arms that fan out from the
center
• ¾ of the galaxies discovered have been spiral galaxies
• Milky Way Galaxy is considered a spiral galaxy
– Diameter about 100,000 light years
– 2,000 light years thick, 6,000 light years in the center bulge
– Elliptical galaxies – almost round or more oval
• Largest galaxies we know of are elliptical
– Irregular galaxies – have no real shape;
probably young galaxies where stars are still
forming
Milky
Way
over
Canada
Milky Way Galaxy
Milky Way over Death Valley
• Milky Way
is thought
to be a
spiral
galaxy,
similar to
this one,
known as
M100
• Disk
shaped,
with curving
dusty arms
Take 30 seconds to discuss in table
groups….
“Why is the Milky Way thought to be a spiral
galaxy? No one has ever actually seen the
Milky Way as a whole – why not?”
ANSWERS: Answers will vary…never seen as a
whole because WE ARE IN IT!! Thought to be a
spiral galaxy because from our perspective
looking out we see things similar to a center
bulge on one side and “arms” on the other.
Side View of Milky Way Galaxy (Artist’s Conception)
Messier 104
Also called the Sombrero Galaxy
NGC 4565
Also called the Needle
Galaxy
• Elliptical
Galaxy is
elliptical,
and has a
featureless
brightness
• Irregular
Galaxies
have
uncommon
shapes
NGC 1427A
Constellations
A group of stars that forms a
pattern
• Constellation – a group of stars that forms
a pattern
– Provided a way to divide the sky into sections
– Constellation is kind of like a star’s address;
helped you know where in the sky to look for
a star
– Depending on your location on earth, you will
see different constellations (Northern and
Southern hemisphere)
• Things in the universe are constantly moving in
different directions and speeds
– Because the Earth rotates, stars will seem to move
throughout the night. Not the stars moving but Earth.
Different perspective
– Because the earth rotates around the sun, different
constellations will be visible at different times of the
year
• Ursa Major, with the big dipper, is visible year-round
• Canis Major only visible in the winter.
Orion
• This is seen
from Earth
• Do you see
Orion holding
the lion???
• Raise your
hand if you
would like to
volunteer to
come up to the
board and
show us what
you see (one
person).
Big Dipper
Cassiopeia
Cepheus
• Sits next to
Queen
Cassiopeia
Closing it up….
• Please raise your hand QUIETLY AND
POLITELY to answer the questions.
• What kind of galaxy is the Milky Way?
• Spiral Galaxy
• Are irregularly shaped galaxies thought to be
young or old?
• Young Galaxies
• True or false: different constellations are visible
at different times of the year.
• True