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8th Earth in Space

8th Grade Earth in Space TEST Review

TermDefinition
Away The moon moves ______ from the sun when it's waxing
Solar Eclipse An event when the moon passes between the Earth and the Sun
Tides Water bulges on the Earth's surface due mostly to the moon's gravity
Solstice The longest or shortest day of the year
June The month when the Southern hemisphere's Winter Solstice takes place
Terminator The line that separates day time from night time
Rotation The Earth experiences day and night because of the earth's ___
Waning Gibbous A moon phase in which most of the moon is lit up and the bright side is on the left
Waxing Moon phases in which the bright side is on the right side & the moon appears to be growing larger each night
Seven The approximate # of days it takes for the moon to complete 1
Neap tides When the tidal range between high and low tides is small
Phases The different appearances of the moon are called _________
Axis The Earth rotates around it's ______ once every 24 hours
Full Moon The moon phase when a lunar eclipse can occur
Equinox The event in which the daytime hours are equal to night time hours in both hemispheres
Last Quarter Moon phase in which half of the moon is lit and the dark side is on the right side
Tilted The Earth experiences different seasons because it orbits the Sun and because it is _________
Spring Tides The event that occurs at full and New moon phases
Waning Moon phases in which the bright side of the moon is on its left side & the moon moves towards the Sun
Revolution The Earth makes one of these around the sun every 365 days
Waning Crescent The moon phase that occurs 14 days after a Waxing Gibbous moon.
twenty Five the percentage of the moons orbit that is covered in 7 days
New Moon The moon phase that would occur three weeks after a 1st quarter moon
spinning Another name for rotation
Orbit Another name for revolution
Expanding The Big Bang theory tells us that the universe has been and still is __________
Nebula A large cloud of dust and gas that becomes a star
Nuclear Fusion The way stars produce energy
Milky Way The galaxy in which our solar system exists
Andromeda What is the closest spiral galaxy to our galaxy
Temperature A physical property that is part of the basis for the HR Diagram
Spiral The Milky Way galaxy is this type of galaxy
Event Horizon The edge of a black hole
Constellations Patterns of stars in the sky
Redshift Evidence that the universe is expanding
Main Sequence Our sun is this type of star
Clouds of Magellan Two irregular galaxies that orbit our galaxy
Electromagnetic _______ waves can move through the vacuum of space
Light years Extremely large distances in space
Universe Something that is approximately 12 to 14 billion years old
Yellow The color of a medium temperature star
Red Giant A star that has used up all of its hydrogen becomes larger and cooler
Gamma rays The highest energy waves that come from stars
Luminosity Another expression that means brightness
Irregular The type of galaxy that is the smallest
Distance What is measured by light-years
Parallax Changing star location by earth's movement which allows us to calculate how far away they are
cool The temperature of orange and red colored stars
Galaxy A large group of stars held together by gravity
Black Hole One possible result after a star goes supernova
White Dwarf After a Red Giant star collapses slowly the very hot tiny dense star that remains
Steady state Theory Theory that the universe was and always has been as it is now
Super nova Giant stars that collapse quickly and explode out
Red Color with the longest wavelength
Blue Shift The change in light that is getting closer
Created by: coach_fletcher
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