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UNIT 8 VOCABULARY
Space Probe
Space Exploration
Satellite
Space Shuttle
Rover
International Space Station
Spacecraft
Gravity
Orbit
Mass
Sun
Planet
Inner Planet
Unmanned (No person) spacecraft
designed to explore the Solar System
and transmit data back to earth.
Investigation of physical conditions in
space on stars, planets, and other
celestial bodies through use of
satellites, space probes, or spacecraft
with human crews.
Spacecraft that orbits Earth; a smaller
body that orbits a larger body- the
Moon
A reusable spacecraft designed to
transport people and cargo between
Earth and space
A vehicle for exploring the surface of an
extraterrestrial body (as the Moon and
Mars)
An orbiting station construction began
in 2001 with the cooperation of 16
nations; used for scientific and space
research
A vehicle or device designed for travel
or operation outside the Earth’s
atmosphere.
The force of attraction that pulls
objects towards each other.
A curved path followed by a satellite as
it revolves around an object
The amount of matter in an object or
substance
The luminous(bright) celestial body
around which Earth and other planets
revolve and receive heat and light.
Any of the large celestial bodies that
revolve around the Sun in the solar
system
Any of the rocky, terrestrial planets of
UNIT 8 VOCABULARY
Outer Planet
The Moon
Galilean Moons
Meteor
Meteoroid
Meteorites
Asteroid
Asteroid Belt
Comet
Solar System
Newton’s Law of Universal Gravitation
Mercury, Venus, Earth, and Mars whose
orbits range is within the asteroid belt.
Any of the planets Jupiter, Saturn,
Uranus, and Neptune whose orbits lie
beyond the asteroid belt
Earth’s natural satellite that revolves
around Earth from west to east.
The four largest and brightest moons of
Jupiter discovered by Galileo.
Small meteoroid that burns upon entry
of Earth’s atmosphere.
A natural chunk of rock or dust existing
outside Earth’s atmosphere.
Remains of meteoroids that strike the
surface of Earth or the Moon
Piece of rock or metal made up of
material similar to that which formed
the planets that orbit the sun
The region of interplanetary space
between the inner and outer planes
where most asteroids orbit around the
sun.
Consists primarily of ice, dust, and rock
whose orbit is a long narrow eclipse.
The sun together with the group of
planets that are held by its attraction
and revolve around it.
The law that says every object in the
universe attracts every other object.