Earth Science Astronomy

Earth Science Astronomy

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Question Answer
Planet that is little more than a moonsized object. Pluto
The outermost layer of the sun's atmosphere chromosphere
The planet with the most moons Saturn
Cloud of dust and gas surrounding the nucleus of a comet coma
Two main gases in the atmosphere of Jupiter are helium and _____. hydrogen
The nucleus, coma, and tail are parts of a (n) ________. comet
The largest single structure in the solar system is a field around Jupiter called the ________. magnetosphere
The movement of a planet around the sun. revolution
An imaginary line about which a planet rotates. axis
The theory that states that the solar system began as a huge cloud of dust and gas. Nebular Theory
A star's brightness as it appears from the Earth. apparent magnitude
The largest stars are called ________. supergiants
Gemini, Leo, and Canis Major are these. constellations
Algol is an example of this eclipsing binary
The sun is located in this galaxy. Milky Way
Of three types of electromagnetic waves, the longest are infrared. True
In a reflecting telescope, light passes through convex lenses. False, refracting
Scientists think that the sun formed from a cloud of gas and dust. True
A group of stars, gas and dust held together by gravity is a galaxy. True
The phase of the moon that immediately precedes the new moon is the waxing cresent. False, waning
Space stations are satellites. True
The planet with the lowest density and hundreds of thin rings is Uranus. False, Saturn
SETI searches for extraterrestrial life will NOT cause contamination because radio signals are listened for. True
Optical telescopes include reflecting and refracting telescopes. True
The first stage in the space program designed to send Americans to the moon was Project Mercury. True
A comet develops a coma because of the Oort Cloud. False, solar wind
The coolest stars in the sky are blue in color. False, red
In many places, only the brightest stars are visible from Earth because light pollution fills the sky. True
A permanent structure where scientists could live and study on the moon would be a moon mission. False, colony
The planet with an unusual orbit is Pluto. True
The innermost layer of the sun's atmosphere is called the _______. photoshere
The large clumps that eventually became the planets are called ________. protoplanets
A _______ is a storm that shows up as a bright burst of light on the sun's surface. solarflare
The planet that has the most obvious ring system. Saturn
A solid, rocklike object that can enter the Earth's atmosphere. meteoroid
A _____ is an instrument used to break the light from stars into its colors. spectrophere
The spectrum of a star approaching the Earth is shifted toward the ______ end of the spectrum. blue
The apparent change in light wavelengths due to the motion of an object is called _______. doppler effect
According to this theory, all the matter and energy in the universe was once compressed into a single area. Big Bang
A diagram in which the absolute magnitude of stars is plotted against their average surface temperature. Hertzsprung-Russell
Most stars in the stable state belong to this stage. main sequence
This is visible during a total solar eclipse. corona
The sun rises in the west and sets in the east on this planet. Venus
This planet has polar ice caps and dust storms. Mars
These are the dark areas on the moon. Maria
The sun produces energy by fusing hydrogen atoms into ______ in its core. helium
Dark-colored, relatively flat regions of the moon's surface that were formed when interior lava filled large basins are called _______. maria
A ________ occurs when the moon moves directly between the sun and Earth and casts a shadow on Earth. solar eclipse
A planet that appears red due to iron oxide in its rocks is ______. Mars
The positions of the constellations appear to change throughout the year because ______. Earth revolves around the sun
The sun is at its northernmost and southernmost positions at ________. winter and summer solstices
When small pieces of rock moving through space enter Earth's atmosphere and burn up, they're called ________. meteors
Dark, cooler areas on the sun's surface are called _______. sunspots
The yearly orbit of Earth around the sun is called its _______. revolution
Although it has a brighter ______ than Sirius, Rigel does not look as bright in the night sky. absolute magnitude
The LEAST desirable location for an obtical telescope is likely to be in a large city
The part of the spectrum that can be spearted into colors of the rainbow is visible light rays
The next stage in the life of the sun is expected to be red giant
A meteor is the light made by a rock fragment as it passes through Earth's atmosphere
If the moon's umbra fails to reach Earth no eclipse occurs
space shuttle It was a reusable rocket to bring astronaughts to and from Earth
Space Probe an un-manned computer rocket sent to gather information and send it back to Earth
Space station permanent living Quarters and laboratory for scientists in space
What are some uses for the space shuttle? It was economical, reusable rocket and has helped to build the international space station and maintain it
What was the mission of the Pathfinder? To Land on Mars, take samples and send information back to Earth

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