Light
The name of light when it bounces off a object
What is reflection / reflect / reflecting
The eye can’t see an object in total darkness because
What is there’s no light reflecting off the object into our eyes
This happens when an object absorbs some colors and reflects others
What is seeing a specific color
What happens when the sun shines on a tree
What is casting a shadow
The part of the eye that controls how much light enters
What is the pupil
Why we can't see light unless it enters our eyes
What is because light must reflect off something into our eyes to be visible
The part of your body that lets you see
What is the eye
How a red filter affects the color of light passing through it
What is it only lets red light through and absorbs the other colors
Why shadows change direction throughout the day
What is because the position of the sun (light source) moves across the sky
Rod cells help us see in dim light, but they can’t do this
What is detect color
This explains why a mirror shows a clear image but paper doesn’t
What is smooth surfaces reflect light in the same direction (specular reflection), while rough ones scatter it?
What must happen for us to see an object
What is light must reflect off the object into our eyes
You see a red apple because of this reason
What is it reflects red light and absorbs other colors
What causes a shadow to change size
What is the distance or angle of the light source
This part focuses light onto the back of the eye
What is the lens
Why a pencil looks bent in a glass of water
What is because light bends when it moves from air to water (refraction)
This happens when something blocks light from reaching our eyes
What is not being able to see the object
This explains why the sky looks blue during the day
What is shorter wavelengths of blue light scatter more in the atmosphere
When the light source is very close, the shadow looks
What is big and blurry
The part of the eye that sends signals to the brain
What is the optic nerve
A material that blocks all light is called this
What is opaque
This tool helps us see things more clearly or in more detail
What is a magnifying glass or lens
What happens when you mix all the colors of light
What is white light
You can only get a shadow if the object is
What is opaque or translucent
This part of the eye detects light and color
What is the retina