a transparent object that causes light to change
What is Lens
a reflected sound wave
What is echo
a material that allows most of the light that strikes it to pass through, but through which objects appear blurry.
What is translucent
What does the loudness of a sound depend on?
What is amplitude
When a surface reflects a light, and the angle of incidence EQUALS 60 degrees, what will the angle of reflection be?
What is 60 degrees
a longitudinal wave that can travel only through matter
What is sound wave
the colored part of the eye
What is iris
any reflecting surface that forms an image by regular reflection
What is mirror
What is measured on a decibel scale?
What is volume
When does refraction of light waves occur?
What is a wave that changes direction and speed as it passes from one material to another
an area at the back of the eye that includes special light-sensitive cells-rod cells and cone cells
What is retina
something that emits light
What is opaque
What type of waves are produced through vibration?
List the 3 parts of the ear and what they do
What is outer ear-collects sound waves
What is middle ear-amplifies sound waves with vibrations
What is inner ear- converts vibrations to nerve signals that travel to the brain
the perception of how high or low a sound is; related to the frequency of a sound wave
a convex lens made of transparent tissue located on the outside of the eye
What is cornea
Who is the best Jr. High Teacher
Who is Mrs. April
What type of waves are electromagnetic?
What are light waves

What is outer ear
an opening into the interior of the eye at the center of the iris.
What is pupil
a material that allows almost all of the light striking it to pass through, and through which objects can be seen clearly
What is transparent
What event is happening Thursday afternoon
What is the Jr. High dance
What are 3 things that can happen when light waves interact with matter?
What is reflected, transmitted, absorbed

What is middle ear/ear canal