Light Basics
This is the name for the tiny packets of energy that make up light.
What are photons?
Animals like fireflies create light through this chemical process.
What is bioluminescence?
When light is taken in by a material rather than reflected or transmitted, this occurs.
What is absorption?
These bulbs use excited gas and a glowing phosphorus coating to produce light.
What are fluorescent lights?
The only part of the spectrum humans can naturally detect without technology.
What is visible light?
The visible color with the shortest and longest wavelength.
What are violet and red?
This colored part of the eye controls the size of the pupil.
What is the iris?
This light-sensitive layer at the back of the eye contains rods and cones.
What is the retina?
Objects we can see only because they reflect another light source are called this.
What are non-luminous objects?
The root word "bio" means this in Latin.
What is life?
You can see yourself in a mirror because of this.
What is reflection?
These modern lights last 25-100 times longer than incandescent bulbs.
What are LED lights?
This type of wave has the longest wavelength.
What are radio waves?
We see an object as green because it absorbs all other colors and does this with green.
What is reflects it?
This opening in the center of the eye lets light in.
What is the pupil?
These cells, located in the retina, allow us to see color and fine detail.
What are cones?
This term describes objects that produce their own light.
What are luminous objects?
This deep-sea creature uses a glowing lure to attract prey.
What is the anglerfish?
A straw looking “broken” in a glass of water is an example of this effect.
What is refraction?
This type of lightbulb has a filament that glows "white-hot" as electricity passes through it.
What is incandescent?
This part of the spectrum gives you a sunburn.
What is ultraviolet light?
A rainbow forms when sunlight is refracted, reflected, and dispersed in these.
What are water droplets?
This clear front covering of the eye helps focus light.
What is the cornea?
These cells, located in the retina, allow us to perceive brightness.
What are rods?
This happens when light bounces off a surface.
What is reflection?
These drifting marine animals light up in blue and green to confuse predators.
What are jellyfish?
A black surface feels warm in sunlight because it does this to most wavelengths.
What is absorb them?
LED stands for this.
What is Light-Emitting Diode?
These waves have the shortest wavelength and highest energy.
What are gamma rays?
The rainbow was given as a sign of this covenant God made with Noah.
What is the promise never again to destroy the earth by flood?
This nerve carries visual signals from the retina to the brain.
What is the optic nerve?
This part of the animals' eye, are often much larger than the humans', allowing more light to pass through.
What are the pupils?
This happens when light bends as it moves from one material into another.
What is refraction?
Bioluminescence is most common in this environment, where sunlight cannot reach.
What is the deep ocean?
Light changes direction because it changes this when entering a new medium.
What is speed?
This type of light produces very little heat compared to incandescent bulbs.
What are cold lights/LED bulbs?
Name the 7 types of waves in the Electromagnetic Spectrum.
What are radio waves, microwaves, infrared, visible light, UV, X-rays, and gamma?
In the Bible, the rainbow appears in this book after the flood.
What is Genesis?
This white outer layer provides structure and protection for the eye.
What is the sclera?
Because of this layer, many animals’ eyes appear to “glow” when light shines on them.
What is the tapetum lucidum?