a theory that one explosion created the universe (SRB)

a system of two stars orbiting their barycenter (SRB)

a system of interacting living organisms (SRB, IG)

a point of view directly above the area being studied (SRB, IG)

an extremely dense cosmic object that can form after a star becomes a supernova (SRB)

the distance around a circle (SRB)

a chunk of ice, dust, and rock material a few kilometers in size (SRB, IG)

a crater that has central peaks and ejecta thrown out in long rays (SRB, IG)

the center of Earth, made of iron and nickel (SRB)

a change in land created by an impact (SRB, IG)

the shape of the Moon just after and just before the new Moon phase (SRB, IG)

the rigid outer layer of Earth (SRB)

the distance from one point in a circle to an opposite point in the circle (SRB)

an object that orbits the Sun and is big enough to be round but doesn’t clear away all objects near its orbit (SRB)

a community of organisms interacting with each other and with the nonliving environment (SRB)

the material displaced from the land when a crater is formed (SRB, IG)

the vertical distance or height above sea level (IG)

the imaginary line that runs around the middle of a planet, halfway between the North and South Poles (SRB, IG)

a day of the year when the Sun’s rays shine straight down on the equator (SRB, IG)

a planet orbiting a star other than the Sun (SRB, IG)

the phase that occurs halfway between the new and full Moon (SRB, IG)

a crater from a large impact that filled with magma from beneath the surface (SRB, IG)

the assemblage of objects, distances, and directions that you use to establish the location of something (SRB)

the phase of the Moon that occurs when the Moon is opposite the Sun as seen from Earth (SRB, IG)

an enormous collection of tens of millions to hundreds of billions of stars, interstellar gas, and dust (SRB, IG)

a Moon shape that is larger than a first or third quarter Moon, but smaller than a full Moon (SRB, IG)

a force of attraction between masses (SRB, IG)

light-colored areas of the Moon with lots of rough mountains and craters (SRB, IG)

the crash between one object (impactor) and another object (SRB, IG)

the region of the solar system beyond the orbit of Neptune; plutoids are located here (SRB)

the angular distance north or south from Earth’s equator (SRB, IG)

the distance light travels in 1 year. One ly is about equal to 9.5 trillion kilometers. (SRB, IG)

a relatively small cluster of several dozen galaxies, including the Milky Way (SRB)

the position of an object relative to other objects (SRB, IG)

the distance measured on Earth's surface east or west of the prime meridian (IG)

when Earth is exactly between the Moon and the Sun, and the Moon passes through Earth’s shadow (SRB, IG)

the galaxies closest to the Milky Way (SRB)

the layer of Earth below the crust; upper part is solid and lower part is semisolid (SRB)

the dark surface of cooled magma in a flooded crater (SRB, IG)

a streak of light in the sky from gravel- and pebble-sized meteoroids; also known as a shooting star (SRB)

Planetary Science Vocabulary Flashcards

Student preview

95 questions

Show all answers

1.

FLASHCARD QUESTION

Front

accretion

Back

sticking together (IG)

2.

FLASHCARD QUESTION

Front

altitude

Back

the distance above Earth’s surface (IG)

3.

FLASHCARD QUESTION

Front

asteroid

Back

a small, rocky object that orbits the Sun (SRB, IG)

4.

FLASHCARD QUESTION

Front

asteroid belt

Back

a region between Mars and Jupiter that consists of small chunks of matter that orbit the Sun (SRB)

5.

FLASHCARD QUESTION

Front

astronomical unit (AU)

Back

the average distance between Earth and the Sun, about 150 million kilometers (SRB, IG)

6.

FLASHCARD QUESTION

Front

atmosphere

Back

a layer of gases that surround an object, held in place by gravity (SRB, IG)

7.

FLASHCARD QUESTION

Front

axis

Back

an imaginary axle that a planet spins on (SRB, IG)

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