The amount of matter in an object.
Mass
The ability to do work.
Energy
The path an object, such as a planet, takes as it revolves around another object.
Orbit
A large area of flat land.
Plain
Any living thing.
Organism
States of matter such as solids, liquids, and gases.
Physical State
A triangular glass bar that separates white light into the colors of the rainbow.
Prism
The partial or total blocking of light of one object by another.
Eclipses
An area between two cliffs that formed due to erosion from a river or glacier.
The complete dying out of an entire species.
Extinct
A force that can attract (pull closer) or repel (push away) magnetic materials.
Magnetism
Energy stored in chemicals such as food and batteries.
Chemical
Turning or spinning on an axis.
Rotation
Formed from a fast moving river or a glacier over thousands of years.
Valley
The environment where an organism lives.
Habitat
How an object feels to the touch.
Texture
A force that resists motion when two surfaces are touching each other.
Friction
A science tool that used for observing very distant objects in space.
Telescope
A mound of sand created by the wind depositing sand in a new location.
Sand Dune
The changes that insects and some amphibians go through during their life cycle.
The density compared to water, sink=more dense, float=less dense.
Relative Density
The frictional force air exerts against a moving object.
Air Resistance
Each of the four divisions of the year (spring, summer, autumn, and winter) marked by particular weather patterns and daylight hours.
Seasons
Forms from deposited land at the mouth of a river.
Delta
An organism that hunts and kills another organism for food.
Predator