The bowl-shaped indents or cavities on the surface of a planet that are caused by a collision with another object.

A natural satellite that orbits a planet

The star at the center of our Solar System that supplies heat to Earth, its gravity keeps the system in orbit.

A planet in our Solar System that has life on it

A force that pulls objects toward the center of the Earth

The time it takes the Earth to make on complete rotation on its axis (24 hr. period)

A line, real or imaginary, around which something spins

An instrument that shows direction and uses a small magnet to show North (N, S, E, W).

A dark area caused when an object blocks light falling on a surface

An instrument that measures the time of day using the position of the Sun

When the Earth faces the sun and is highlighted it is ___________ on that side of the Earth.

When the Earth faces away from the Sun and is dark it is _______________ on that side of the Earth.