A type of fungus used to cure cancer.
Glassy or transparent in appearance.
A type of truck.
A particle, barley visible through a microscope, that is found in a cloud.
A muscle in the human body.
A condition that occurs when one's joints swell from too much water.
The fear that Earth will be destroyed by a break in the asteroid belt.
Tempered steel.
A part of an atom that cannot be separated from the rest.
An alien that can change into any type of species on any planet.
A way to help animals surrvive on their own.
One of the world's oldest dinosaurs.