___ means that light bends when it passes from one medium to another.
refraction
Avoid looking directly at _____.
sun
Where does all heat and light energy come from?
Sun
What is Earth's main source of light and heat?
Sun
Thinner in the middle than at the edges.
concave lens
A spoon placed in a glass half filled with water looks broken because of _____
refraction
What does light do when it goes through another medium such as water?
it bends
The picture best shows
light
It occurs when an object does not reflect or transmit the light.
absorption
One of the properties of light that allows us to see images in mirrors.
reflection
What form of energy moves from a warmer place to a cooler place?
heat energy
Sound energy travel fastest in _______.
solid
It makes objects look larger/bigger.
convex lens
It is the degree of highness or lowness of sound.
pitch
It makes objects look smaller.
concave
it is a type of energy that makes things warm?
heat energy
It is any materials that completely block light from passing.
opaque
Use a __ if you really have to look at at it or if the sun light outside is very bright.
sunglasses
It describes what happens to light when it contacts a mirror?
It reflects the light (reflection)
It gives you a blurry view but lets in light.
translucent
Translucent object.
frosted glass
___ cannot travel through a vacuum.
sound
Which of the following items does NOT produce heat?
A mirror
Thicker in the middle than at the edges.
convex lens
What does OPAQUE mean?
Light cannot pass through
What does Transparent mean?
light can pass through the object
These are materials that allow light to pass through with almost no disturbance.
transparent