What is an image that looks closer or farther than it actually is because of warm or cool layers of air near the ground?

What does transparent mean?

What word means a material absorbs some colors and reflects others?

What does translucent mean?

What is the light that uses ultraviolet radiation to cause a light bulb to grow?

What is a material that absorbs or reflects all light?

What happens when light strikes a surface between two materials and completely reflects back into the first material?

What is the change in pitch or frequency that occurs when the source of sound wave is moving toward or away from the observer?

How do humans perceive sound intensity?

How do we describe the differences among sounds having the same pitch and loudness?

What is the study of sound?

What is part of the ear that vibrates and passes the wave energy into the middle ear?

What do we call sounds created in specific pitches and sound quality in a set pattern?

What is the spiral-shaped, fluid filled structure in the inner ear that converts sound waves to nerve impulses?

When objects are located by sound waves sent, then they bounce back, they are interpreted as ___________________.

The unit that measures sound intensity with the letter dB is called _______________.

What is the amount of energy a sound wave carries and it can be measured in dB?

The high or low of sound based on frequency of the sound waves is ______________.

A range of sound waves with frequencies so high you cannot hear them, above 20,000 Hz is called __________.

What is prolonged sound by reflection from a surface or by the matching sound waves of a neighboring object?