Aces Training Keep your Aces Answer Sheet! Worth a large Test. (100 pts) 1.Pick-up Aces...
18
Aces Training • Keep your Aces Answer Sheet! • Worth a large Test. (100 pts) 1. Pick-up Aces “Warm-up” on back table. 2. Turn-in answer sheet before we go over it. 3. Turn-in questions. 4. Pick-up both at beginning of period on back table.
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Transcript of Aces Training Keep your Aces Answer Sheet! Worth a large Test. (100 pts) 1.Pick-up Aces...
Aces Training• Keep your Aces Answer Sheet!• Worth a large Test. (100 pts)
1. Pick-up Aces “Warm-up” on back table.
2. Turn-in answer sheet before we go over it.
3. Turn-in questions.4. Pick-up both at beginning of
period on back table.
Strategy Review.1. P.O.E.
2. Focus Words
3. 2-pass method
4. Know your enemy
1. Know your enemy
2. 2-pass method
3. Focus Words
4. P.O.E.
Which ORDER should you use them?
#20
#21
#22
#23
“The Solar System in a Nutshell”
Chapter 25
However did it get into
this nutshell?!
Do Stars Move?
Does the Universe have an end? Will you eventually run into a wall?...
How many constellations there are?
Properties of Stars
• Color:– b/c of Tempo
– Hot = B____
– Cooler = R___
– Yellow?
• Mass:– How much “stuff”
– “M_____R”ATTELUE
ED
Binary Stars:
What are they?!• Stars that orbit each other• Gravity!• Helps find Mass!
Artist Rendition of Binary System LH54-425, located in the Large Magellanic CloudNasa.gov
Really not that
cool.
Distance to StarsParallax:
– Noticing shift in location throughout the year.
Light-years!
Brightness.
1. Size
2. Tempo
3. Distance from Earth
Hertzsprung-Russell Diagram
Variable Stars
– Some change brightness
Nova
– Gets Brighter!
Gosh that sounds familiar…
A Cloud of Dust & Gas in Space is a ________!NEBULA
Assignment!
– GR. 25.1 For Stamp!
Stellar Evolution
1. Birth (contraction)
2. Protostar (Tempo ↑)
3. Main-Sequence– (Hydrogen Fusion)– (90% lifetime)
4. Red-Giant (Grows, Tempo ↑↓)
5. Death. (Burn-out)– Runs out of gas.– Literally.
Nucleosynthesis.
As stars die, they release ingredients for new elements.
Dying star
Uses Hydrogen
Releases Helium:
Smallest Element
Heliumsticks
together
Forms other
elements
Eventually…
…All stars collapse!
1. White Dwarf
2. Neutron Star
3. Black Hole
All VeryDENSE!
most
least
The Universe.
• Contains all galaxies.
• Everything.
Lawndale HS:Universe 600 building:
Milky WayGalaxy
Room 605:Solar System
Your Desk:Earth.
• Spiral Galaxy
• Our Solar system = 2/3 way out!
Milky Way Galaxy.
Expanding Universe.
• Getting B______.
• Hubble’s Law:– Galaxies that are farther away are moving
away faster!
IGGER
