8.4 Earth in Space (partial list)

Front

Study of the moon, stars, and other objects in space

Back

astronomy

Front

imaginary line passing through a celestial body, around which it spins

Back

axis

Front

The angle of the sun above the horizon

Back

solar elevation

Front

one of two days per year when daylight hours equal nighttime hours

Back

equinox

Front

measurement, in degrees, of a place's distance north or south of the equator

Back

latitude

Front

an occurrence that can be observed and studied

Back

phenomena

Front

The curved path of one object moving around another

Back

orbit

Front

Time when the sun reaches its greatest distance north or south of the equator.

Back

Solstice

Front

spinning or turning around on an axis

Back

rotation

Front

one object orbiting around another

Back

revolve