Reflection		Light rays travel at a ____ of approximately 300,000 km/s when traveling in a vacuum.
Spectrum		A ____ mirror has a flat surface.
Fluorescent		When these act like prisms in the sky, rainbows may form.
Violet		The band of colors that can be seen when white light is broken up by a prism.
Light		A ____ mirror causes an object to appear larger than it actually is.
Transparent		In an incandescent light bulb, most of the electricity used is converted into this form of energy.
Vacuum		The bending of light rays as it passes from one material into another.
Wavelength		A ____ object reflects some light rays and also absorbs some light rays. You may be able to see something through this object, but it will not be very clear.
Convex		The color of something is determined by the length of its ____ .
Translucent		A ____ mirror causes an object to appear smaller than it actually is.
Heat		An ____ object reflects or absorbs all light rays. You can not see through this type of object.
Prism		The change in direction that occurs when a light ray bounces off of a surface.
Mirror		A smooth, shiny surface that is able to reflect light.
Concave		An arc of colors that sometimes appears in the sky. The colors that can be seen with a spectrum are the same colors that make up this.
Refraction		A uniquely shaped object that can separate white light into individual colors. This is often referred to as the color spectrum.
Opaque		A ____ object does not reflect or absorb much light. You can see clearly through this type of object.
White		The color of all of the sun's colors mixed together.
Rainbow		In an incandescent light bulb, only very little of the electricity used is converted into this form of energy.
Plane		The color that has the shortest wavelength.
Red		Empty space that contains no matter. Light can travel through this.
Raindrops		A ____ light bulb contains a gas that gives off light when it is heated by electricity.
Speed		The color that has the longest wavelength.