Front

Waxing

Back

growing or getting larger

Front

Waning

Back

weakening or getting smaller

Front

Tidal Range

Back

Vertical difference between high tide and low tide.

Front

Solstice

Back

points of furthest and closest distance of the Sun from the Earth corresponding to winter and summer.

Front

Satellite

Back

Orbits another object, like a Moon around a planet or a man-made object around Earth.

Front

Rotation

Back

to spin on an axis; the spinning of Earth on its axis that causes day and night.

Front

Revolution

Back

Moves in an elliptical path around the center

Front

Penumbra

Back

Partial shaded outer region of the shadow cast by an opaque object.

Front

Neap Tide

Back

Tides with the smallest daily range when the Sun, Earth, and Moon form a 90-degree angle.

Front

Planet

Back

Large celestial bodies that revolve around the Sun in the solar system.