Chapter 23 - 1 Observing the Solar System
Right side
Vocabulary
geocentric
heliocentric
ellipse
inertia
1. Greek ideas -
A. believed universe is perfect
and unchangable
B. believed Earth centered
1 . geocentric'
C. Ptolemy
1. believed
moon and planets revolved around Earth
2. fig.
2, pg. 741
2. Copernicus's idea-
A. believed sun-centered
1. heliocentric
3. Galileo's observations
A. 2 observations
1. moons
around Jupiter
2. Venus's
phases
4. Brake and Kepler
A. Brake observed planets for
20 years
B. Kepler analyzed data
Summary
Left side
Compare and Contrast Table
Chapter 23-2 Sun
Right side
Vocabulary
nuclear fusion
core
photosphere
chromosphere
corona
solar wind
sunspot
prominence
solar flare
1. Sun's atmosphere
A. 3 layers
1. photosphere
2. chromosphere
3. corona
B. fig. 7, pg. 747
2. Features on the sun
A. sunspots
1. fig.
8, pg. 748
2. cooler
gases don't give off as muchlight and look darker
3. vary
over a period of 10-11 years
4. may
affect Earth's climate
B. Prominences
1. loops
that link sunsports
C. solar flares
1. explosions
Summary
Left side
wksht.
Chapter 23-5 - Comets, Asteroids, Meteors
Right side
Vocabulary
asteroid
meteor
asteroid belt
meteorioid
comet
meteorite
1. Comets
A. Elliptical orbits
B. Main parts
1. nucleus
= center
2. coma
= brightest part
3. tail
= gas pushed away from comet
2. Asteroids
A. Located between Mars and
Jupiter
1. over
300
2. called
asteroid belt
3. Meteors
A. Meteroid
1. chunk
of rock or dust in space
B. Meteors
1. meteroid
entering Earth's atmosphere
C. meteorites
1. hits
Earth's surface
Summary
Left side
Table and question- How old will you be when Halley's
comet comes around again?
Chapter 23-6 Life Beyond Earth?
Right side
1. "Goldilocks Conditions"
A. What conditions make a living
thing "alive"?
1. one
or more cells
2. take
in energy = use it to grow and develop
3. reproduce
4. gives
off waste
B. Earth
1. Liquid
water and suitable temperature and atmosphere for life
2. makes
it "just right"
a. not too hot or too cold
3. are
they the only conditions for life?
2. Where have we found life on Earth?
A. Caves - deep inside rocks
B. Hot, hot springs
C. Hydrothermal vents
3. What about Mars?
A. Maybe it had once had
conditions needed for life
B. fig. 33, pg. 776
4. Europa
A. Best place to look for life
B. fig. 34, pg. 777
Summary
Left side
wksht.