Natural vs. Artificial
Natural light sources occur ____ in our environment.
Naturally
An example of a light emitter is...
Sun, stars, lamp, flashlight, etc.
How many properties of light are there?
4
Light is made up of different colours we cannot see with our own eyes. When we shine a light through a prism, it ____ to show us the different colours of the rainbow.
Refracts
The only form of energy we can see with our eyes.
Light
Artificial light is created by...
Humans
This colour reflects light.
White (or neon/bright colours)
This is formed when an opaque object blocks light rays.
A shadow
Refraction is when light passes through a material or object and _____.
Bends
Light from the sun leaves how many minutes before we are able to see it?
8
A firefly is an example of ____ light.
Natural
Stars and light bulbs can both be light emitters.
True
Light cannot ____.
Which colour absorbs light?
Black (darker colours)
When artificial lights, like streetlights or building lights, make the night sky too bright.
Light pollution
A glow stick is an example of ____ light.
Artificial
The moon is a light ____.
Reflector
The sky is blue because...
Blue light is reflected more than other colours on earth
Light moves faster through ____ than water (because it is more dense).
Air
Give an example of a light source that does not give off heat.
Fireflies, television screens, & glow sticks
A campfire is an example of ____ light.
Artificial
A property of minerals that tells us how much of the mineral reflects light (shiny materials).
Lustre
The seven colours of the rainbow are?
ROYGBIV - red, orange, yellow, green, blue, indigo, and violet
In the station: Mirror at Different Degrees with an Object, we noticed that the smaller the angle, the ____ images we saw.
More
Define transparent
Material that allows all light to pass through it