the part of the moon we see illuminated is getting larger

when the shadow of one celestial body falls on another

darkest part of the eclipse shadow

lighter part of the eclipse shadow

occurs when the moon moves between the Earth and the sun

when the sun appears to be completely blocked except for a bright halo of light

annular solar eclipse

occurs when they are in a straight line

partial solar eclipse

the moon only blocks part of the sun

the moon appears totally or partially dark depending on where it passes through Earth's shadow

when the whole moon passes through the umbra

partial lunar eclipse

part of the moon passes through the umbra

penumbral lunar eclipse

when the moon passes through the penumbra

a group of stars that form a pattern

a division of the year that is associated with particular weather patterns

mark the two days of the year when Earth's axis is tilted directly toward or away from the sun

land of the midnight sun

regions north of the Arctic Circle where the sun doesn't set during the summer

a group of stars, and everything orbiting them, that orbit each other due to gravity

absolute measurements

measure an exact distance or size

relative measurements

compare a size or distance to something else

inner rocky planets between the sun and the asteroid belt

gas giants past the asteroid belt

chunks of dust and ice that orbit the sun, often seen with a tail as the sun's energy melts away part of the ice

small rocky or metallic bodies that revolve around the sun

the area that orbits around the sun, located between the orbits of Mars and Jupiter, that contains millions of asteroids.

bits of rocky or metallic space debris found throughout the solar system

a chunk of space rock when it enters Earth's atmosphere

when a chunk of space rock strikes the Earth

first person known to use a telescope

published the Theory of Gravity

a force attracted to all other matter

cloud of dust and gas from which the planets and the sun formed

a rotating, flattened disk of gas and dust that surrounds a newly formed star, where planets are believed to form

when temperature and pressure increase over time as particles in the nebula collide and clump together, creating a very young star that is still gathering mass from its parent molecular cloud

using technology and science to determine what objects in space look like

groups of stars that are best visible in the night sky during specific seasons

the planets, ancient civilizations observed them as stars, moving across the sky relative to the fixed stars

when an object, like a planet, appears to move backward across the sky as seen from Earth

when one celestial object passes in front of another

Greek philosopher who made a geocentric model that had Earth as the center of the universe

Earth-centered model for the universe

the apparent shift in position of an object

astronomer who improved Aristotle's model by explaining retrograde motion

SCI8 - Space Unit Vocabulary Flashcards

Student preview

74 questions

Show all answers

1.

FLASHCARD QUESTION

Front

rotation

Back

Moving around an axis

2.

FLASHCARD QUESTION

Front

orbit

Back

the path that a body follows as it travels around another body in space

3.

FLASHCARD QUESTION

Front

Polaris

Back

the north star

4.

FLASHCARD QUESTION

Front

phase

Back

the change in the sunlit area of one celestial body

5.

FLASHCARD QUESTION

Front

new moon

Back

when the moon appears totally dark

6.

FLASHCARD QUESTION

Front

full moon

Back

when the moon is entirely lit by the sun

7.

FLASHCARD QUESTION

Front

waning

Back

the part of the moon that we see illuminated is getting smaller

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