space exam reveiw Flashcards
planets in order
mercury, Venus, earth, mars, Jupiter, Saturn, Uranus, neptune
terrestrial planets
4 planets closest to the sun they have a hard rocky surface
has giants
4 planets farthest from the sun. made of gas and liquids
stars
a massive body composed of hot gases
comets
large chunks of ice, dust, rock that orbit the sun
astroids
small objects composed of rock and metal
meteors
a space rock that enters Earth’s atmosphere causing a streak of light in the sky
meteoride
pieces of metal or rock that are smaller then an asteroid and usually the size of dust particles but can be as big as a car
meteorites
a rock in space that survive a trip through the atmosphere and hits the ground of a planet or moon
the 4 seasons and characteristics?
winter solstice, summer solstice, spring equinox, fall equinox
Earth’s roation
Earth’s spinning motion on its axis. 23hrs and 56 min
Earth’s revolution
earths rotation around the sun. 365.25 days
natural satelites
an object that orbits a planet and is not man made. ex moon
artificial satelite
an object people made and launched into orbit. ex iss
characteristics of stars
brightness, temp and colour, composition, size
