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Astronomy Notes
Chapter 3 in astronomy book by Glencoe Science
57
Astronomy
7th Grade
02/04/2013

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Cards

Term
Heliocentrism
Definition
Sun-Centered
Term
Geocentrism
Definition
Earth-Centered
Term
Who Lived Earlier
Definition
Copernicus
Term
Which one was on house arrest for his views on the so;ar system
Definition
Galileo
Term
Who didnt share his views on the solar system until his death bed
Definition
Copernicus
Term
Nicknamed "Red Planet"
Definition
Mars
Term
The largest Planet
Definition
Jupiter
Term
Is known for its rings
Definition
Saturn
Term
Has two moons
Definition
Mars
Term
Has the hottest surface temperature because of its thick atmosphere
Definition
Venus
Term
Has the red spot
Definition
Jupiter
Term
70% of it is covered with water
Definition
Earth
Term
Other than Earth, what planet has ice caps
Definition
Mars
Term
Its axis of rotation is tilted on its side
Definition
Uranus
Term
Least dense planet
Definition
Saturn
Term
Has 13 moons
Definition
Neptune
Term
The smallest planet
Definition
Mercury
Term
Titan is one of its moons
Definition
Saturn
Term
Similar to Earth in size
Definition
Venus
Term
Second largest planet
Definition
Saturn
Term
has 27 Moons
Definition
Uranus
Term
Has the largest moon in the solar system
Definition
Mars
Term
Has one Moon
Definition
Earth
Term
Farthest planet from the sun
Definition
Neptune
Term
closest planet to sun
Definition
Mercury
Term
Blue color of these two planets due to Methane Gas
Definition
Uranus and Neptune
Term
Solar System
Definition
Made up of 8 planets, and many smaller objects that orbit the sun.
Term
Nebula
Definition
Large cloud of gas and dust that contracts under gravitational force and breaks apart into smaller pieces, each of which might collapse to form a star
Term
Planet Formation
Definition
The matter of gas, ice and dust that did not get pulled into the center and stuck together forms the planets and asteroids
Term
Copernicus
Definition
Came up with model heliocentric model
Term
Galileo
Definition
supported heliocentrism
Term
Kepler
Definition
discovered the laws of orbital motion
Said the planets are elliptican and there speeds vary.
Term
Mercury
Definition
smallest planet, closest to the Sun: does not have a true atmosphere: has a surface with many craters and high cliffs
Term
Venus
Definition
second planet from the sun: similar in size and mass to Earth: has a thick atmosphere and a surface with craters, faultlike cracks, and volcanoes
Term
Earth
Definition
third planet from the sun: has an atmosphere that protects life and surface temperatures that allow water to exist as a solid, liquid, and gas
Term
Mars
Definition
Fourth planet from the sun: has polar ice caps, a thin atmosphere, and a reddish appearance caused by iron oxide in weathered rocks and soil.
Term
Jupiter
Definition
largest and fifth planet from the Sun: contains more mass than all the other planets combined, has continuous storms of high-pressure gas, and an atmosphere mostly of hydrogen and helium
Term
Io
Definition
one of jupiter's moons, most volcanically active active body in solar system
Term
Europa
Definition
One of Jupiter's Moons.Europa's surface is mostly water ice, and there is evidence that it may be covering an ocean of water or slushy ice beneath. Europa is thought to have twice as much water as does Earth.
Term
Saturn
Definition
second-largest and sixth planet from the sun: has a complex ring system, at least 31 moons, and a thick atmosphere made mostly of hydrogen and helium
Term
Uranus
Definition
seventh planet from the Sun: is large gaseous. has a distinct bluish-green color, and rotates on an axis nearly parallel to the plane of its orbit
Term
Neptune
Definition
usually the eighth planet from the Sun: is large gaseous. has rings that vary in thickness, and is a bluish-green color
Term
Pluto
Definition
A dwarf planet, formerly considered the ninth planet in order from the sun. Pluto has 3 moons. it is surrounded by only a thin atmosphere and it has a solid, icy-rock surface
Term
comet
Definition
space object made of dust and tock particles mixed with frozen water, methane, and ammonia that forms a bright coma as it approaches the sun
Term
Halley's Comet
Definition
A periodical comet with an orbital period of about 76 years, its reappearance in 1758–59 having been predicted by Edmond Halley. It was first recorded in 240 bc and last appeared, rather faintly, in 1985–86
Term
coma
Definition
The gas and released dust form a bright cloud cloud around the nucleus.
Term
tail
Definition
The solar wind pushes on gases and dust in the coma, making separate tails
Term
Meteoroid
Definition
pieces of dust and rock, from the nucleus of a comet
Term
Meteor
Definition
a meteoroid that burns up in earth's atmosphere
Term
Meteorite
Definition
A meteoroid that strikes the surface of a moon or planet
Term
asteroid
Definition
a piece of rock or metal made up of material similar to that which formed the planets; mostly found in the asteroid belt between the orbits of Mars and Jupiter
Term
Ceres
Definition
The largest and the first asteroid discovered
Term
Oort Cloud
Definition
Cloud of comets, located beyond the orbit of pluto
Term
asteroid belt
Definition
the region of asteroids between Mars and Jupiter where most asteroids are found.
Term
Eris
Definition
dwarf planet near pluto
Term
Pluto
Definition
used to be the 9th planet, now it is a dwarf planet
has one moon
Term
Nucleus
Definition
middle of the comet, the hard part
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