Matter
Anything that has mass and takes up space.
Matter
A push or a pull exerted on an object.
Force
The ability to do work or cause change.
Energy
This state has a definite shape and a definite volume.
Solid
The primary source of energy for Earth.
The Sun
The amount of matter an object contains.
Mass
The rate at which an object's position changes over time.
Speed
Energy that is stored or "energy in waiting."
Potential Energy
In this state, particles are spaced apart and move freely.
Gas
The galaxy in which our solar system is located.
Milky Way
A combination of two or more substances that are not chemically bonded.
Mixture
A force that works against motion when two surfaces touch.
Friction
The type of energy associated with objects in motion.
Kinetic Energy
The process of a liquid changing into a gas at its surface.
Evaporation
The chemical formula for water.
H2O
The smallest particle of an element that retains its properties.
Atom
A place or object used for comparison to determine if something is moving.
Reference Point
The law stating that energy cannot be created or destroyed.
Law of Conservation of Energy)
This phase change occurs when a solid turns directly into a gas.
Sublimation
This subatomic particle has a negative charge.
Electron
The amount of space an object occupies.
Volume
These three laws describe the relationship between motion and forces.
Newton’s Laws
Materials that do not allow heat or electricity to flow easily.
Insulators/Poor Conductors
This fourth state of matter consists of electrically charged gas.
Plasma
The speed of light in a vacuum is approximately this many m/s.
300,000,000 m/s