module 1 vocab

Front

Path an object follows around another object

Back

orbit

Front

Spin of an object around its axis

Back

rotation

Front

Line on which an object rotates

Back

rotation axis

Front

Earth's rotation axis tilted toward/away from the sun

Back

solstice

Front

Earth's rotation axis is tilted neither toward nor away from the sun.

Back

equinox

Front

Lit part of the Moon or a planet visible from Earth

Back

Phase

Front

Phases of the moon when more of the near side is lit each night.

Back

Waxing phase

Front

Phases of the Moon when less of the near side is lit each night.

Back

Waning phase

Front

Moon's shadow on Earth

Back

solar eclipse

Front

Lighter part of a shadow

Back

penumbra