Solar System

Bellwork: Name the eight planets of the solar

system.

 Identify the importance of technology in

space travel.

 Recognize the physical characteristics of the

inner and outer planets.

 War technology

such as rockets
developed in the
30’s allowed space
travel in the 50’s
and 60’s

 The first man to

leave the Earth was
Yuri Gagarin, a
Russian cosmonaut.

 Should the United

States allow other
countries to win the
space race? Explain.

 It was Americans

who were the first
to set foot on the
Moon. The first
step was taken by
Neil Armstrong.

 The moon was

about as far
mankind could
travel with current
technology, but
unmanned
spacecraft were
able to explore the
inner and outer
planets.

 Pioneer Craft and

Voyager Craft

 Should Humanity

send information
about ourselves
into space? Explain.

 If you were to send

information about
us, what would you
send? Compose a
list of ten items.

 Mercury

 Closest planet to

the sun, fastest
orbit

 Size=1/3 of Earth

 Temp=887F, -297F

 Hot side, Cold side

 Venus, 2ndfrom Sun

 Size=almost the same

as Earth

 Temp=hottest in solar

system 900F

 Rotation=243 Earth

Days

 Revolution=225 Earth

Days

 Atmosphere-carbon

dioxide

 Earth 3rdfrom sun

 Temp 136F to -

128F

 Rotation 24 Hours

 Revolution 365

Days

 Only known Life in

Solar System

 Mars 4thfrom the

Sun

 Size about ½ of

Earth

 Temp -220F to 60F

 Rotation 24hrs 37

minutes

 Revolution 22.5

months

 Asteroid belt

 Debris that was

supposed to be a
planet

 Located between

Mars and Jupiter

 The divider

between inner and
outer planets

 Jupiter 5thplanet

from the sun

 Largest planet in

the solar system

 Made mostly of

gases hydrogen and
helium

 Largest number of

moons in solar
system

 Rotation less than

10hrs fastest

 Revolution 12 yrs

 Its gravity protects

us from space
debris

 Saturn 6thplanet

from the sun

 Largest set of rings

in solar system

 Titan, one of its

moons, has an
atmosphere

 Low density, would

float in water

 Rotation 10hrs

 Revolution=30yrs

 Uranus 7thplanet

 Gas giant,

Hydrogen, Helium,
Methane, gives it its
green color

 Strange rotation,

rotates top to
bottom

 Rotation= 18hrs

 Revolution= 84 yrs

 Neptune 8thplanet

 Rotation 16hrs

 Revolution 165 yrs

 Fastest winds

1200mph

 Similar in

composition and
size to Uranus

 Comets

 Large pieces of ice

and frozen gas

 Orbit the sun like

the planets

 Come from the

outer edge of the
solar system, called
Keiper Belt

 Bellwork: Which planet has the largest set of

rings in the solar system?

 Bellwork: Which planet has the largest set of

rings in the solar system?

 Bellwork: compare and contrast Earth and

Venus