Show:
Light, myth, and magic
Making light
Shadows
Reflecting light
Bending light
100
If we didn't have _______, the weather would become as cold as winter, ponds and rivers would begin to freeze, and plants and animals would start to die.
What is the sun?
100
Before humans knew how to make fire, they _____ and ____________ it.
What is found, collected?
100
Sunbeams are _______.
What is straight?
100
Reflecting light means it __________________ (more than one word).
What is bounces back?
100
Light rays can sometimes be bent without passing from one substance to another. True or False.
What is True, using air?
200
The empire that worshiped the sun and believed that their rulers were the sun's living descendants.
What is Inca?
200
According to legends of ancient Greece, the god ____ prevented the humans from having fire.
Who is Zeus?
200
A beam is made of many ____ of light.
What is rays?
200
European mirrors in about 1300 BC were made of _______.
What is bronze?
200
Light bends when it _________________.
What is passes from one surface to another?
300
This is where sunflowers got their English name.
What is their sunlike face?
300
When a fire is lit, __________________ (more than one word) is released.
What is chemical energy?
300
A shadow is sharp if the ____________________________ (more than one word).
What is source of light is small?
300
Reflection always involves two rays: an ____________ ray and an ___________ ray?
What is incoming or incident, outgoing or reflected?
300
______________________ (more than one word) works by blocking some of the light coming from an object so that the light bent by different air temperatures becomes more visible.
What is Schlieren photography?
400
This is what occurs when tiny electrically charged particles from the sun collide with atoms in the earth's atmosphere and the earth's magnetic field draws the particles toward the North and South Poles.
What is an aurora?
400
Some of the oldest oil lamps were made out of _________ and __________.
What is rocks, shells?
400
During an eclipse of the sun, _________________________________.
What is the moon comes between the earth and the sun and its shadow moves across the earth?
400
When parallel light rays strike a concave mirror, they are reflected in a way so that they _____________.
What is converge?
400
We can concentrate light on a certain area by putting light in the middle of _______________________ (more than one word).
What is water-filled spheres?
500
In nature, most forms of light are produced by ____.
What is heat?
500
A ________ is a fine net of chemically treated fabric that fits over a gas jet.
What is mantle?
500
The Brockenspekter is a phenomenon that occurs in high mountains when ________________________________ (more than one word) because the sun is in a low position behind a climber and _____________________ (more than one word).
What is a climber's shadow falls on the clouds, colored rings are seen around the shadow?
500
A diamond is dull when seen from behind because ________________________________________________ (more than one word).
What is a cut diamond is designed to reflect most of the light that falls on its front?
500
A mirage occurs when _________________________________________ (more than one word).
What is a layer of warm air next to the ground is trapped by cooler air above and light is bent toward the horizontal line of vision and eventually it is made to travel upward?