earth in the universe

The spinning of Earth on its axis

The movement of an object around another object

The path of an object as it revolves around another object in space

An imaginary line that passes through Earth’s center and the North and South poles

Two times a year when the sun is directly above the equator and days and nights are of equal length

Time when the Sun is farthest from the equator.

(of the moon) the period during which the visible surface of the moon increases

(of the moon) the period during which the visible surface of the moon decreases

A moon that is completely dark because it’s unlit side is facing Earth

moon phase when the entire side facing Earth is illuminated.

is a lit up crescent on the right

light on the left; more than half of the moon is visible from Earth

The moon is a quarter of the way around the Earth. You can see the right half of the moon.

The left half of the moon is illuminated.

Slightly dark on the left side, mostly lit on the right.

Mostly dark on the right side, slightly lit on the left.

The partial or total blocking of one object in space by another

an eclipse in which the moon appears darkened as it passes into the earth’s shadow.

Occurs when the Moon passes directly between the Sun and Earth and casts a shadow over part of Earth

the daily rise and fall of Earth’s waters on its coastlines

Small, rocky planets that orbit closest to the sun including Mercury, Venus, Earth, & Mars

Jupiter, Saturn, Uranus, & Neptune. Called Gas Giants.

a spacecraft that gathers data without a crew

A device built to observe distant objects by making them appear closer