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34 terms

TCA 5th grade Solar System

STUDY
PLAY
lenses
an optical telescope uses these or mirrors to make distant objects seem larger and nearer
atmosphere
the orbiting Hubble Space Telescope "sees" objects more clearly than Earth-based telescopes because Earth's _____does not change Hubble's view
radio
these telescopes are giant dishes on Earth's surface that gather radio waves from objects in space
planet
the solar system includes eight of these that orbit the sun
Mercury
The planet that is closest to the sun
Neptune
The planet that is furthest from the sun
rock
Mercury, Venus, Earth and Mars are terrestrial planets with surfaces made of this
gases
Jupiter, Saturn, Uranus and Neptune are jovian planets with surfaces made of this
Saturn
it's most noticeable feature is its large set of rings
asteroid
a rock that revolves around the sun in a belt between Mars and Jupiter
telescope
an instrument that makes distant objects seem larger and nearer
moon
a natural object that orbits a planet
satellite
an object in space that orbits another object
comet
an object made of ice, dust and rock that orbits the sun
meteor
a meteroid that enters the earth's atmosphere
planet
a large object that orbits a star but does not give off its own light
gravity
the force of attraction between any two objects
orbit
a path that one object takes as it moves around another object
sun
earth and other planets move in orbits around this
inertia
moving objects have the tendency to keep moving in a straight line, called
revolution
every year, Earth makes one complete trip or ___around the Sun
tilted
sunlight strikes the Earth differently at different times of the year because Earth's axis is this
seasons
the changes in the angle of sunlight on Earth's surface causes these
winter
when the northern hemisphere is tilted away form the sun it is the season
summer
when it is winter in the northern hemisphere, it is __in the southern hemisphere
phase
the appearance and shape of the moon as you see it from earth
eclipse
a darkening or hiding of the sun, a planet or moon by another object in space
tide
the rise and fall of the ocean's surface beacause of the gravity of the moon and the sund
moon
a bulge of water occurs on the side of Earth facing the ____ and on the opposite side of the planet
low tides
there are high tides at the bulges of water and _________halfway between the bulges
spring tides
when the sun and moon align at full moon and pull on Earth together, the higher high tides and lower low tides are called
neap tides
when the sun and moom pull at a right angle and their pulls partly cancel each other, more moderate tides are called
lunar eclipse
when the moon moves into Earth's shadow this occurs
solar eclipse
when the moon passes directly between the Sun and Earth this happens