Energy caused by the movement of electrons.

An animal that eats other animals

The change from a gas to a liquid

The name given to the four inner planets: Mercury, Venus, Earth, and Mars

Non-living factors including temperature, water, sunlight, wind, rocks and soil

A measure of the amount of matter in an object

A phase of the moon that comes after a 1st quarter moon and before a full moon where almost all of the moon is lit up from the right to the left, except a small bit on the left.

An organism that breaks down wastes and dead organisms

A phase of the moon that comes after a full moon and before a last quarter moon where all of the moon is lit up except for a small bit on the right side of the moon that we can see.

An eclipse where the Earth comes between the Sun and the Moon and it is a full Moon (the moon is covered, has a shadow of dark red cast on it, or slightly dimmed)

3rd planet from sun; has an atmosphere that protects life & surface temp.'s that allow water to exist as a solid, liquid, & gas

The Moon appears to be partly but less than one-half illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is decreasing.