Vocabulary
A _____________________ is a physical representation of something in the world. It can help us explain phenomena or solve problems.
scale model
A ______________________ (transparent, translucent, opaque) material allows light to pass through easily.
transparent
______________________ is when light rays hit a smooth surface and bounce off an object at the same angle (absorption, diffusion, reflection, refraction).
Reflection
True or False: For light to be seen an object must produce its own light or reflect light.
True
A ________________________ is a part or element that is changed during a lab or an investigation.
variable
An object that blocks light is called ___________________ (transparent, translucent, opaque),
opaque
Light rays hitting a bumpy surface are ________________ or scattered creating a blurred image (absorbed, diffused, reflected, refracted).
diffused
A mirror is ______________________(transparent, translucent, opaque) and will ______________________ (reflect, refract, absorb) light.
opaque
reflect
A _______________________ is a part or element that is not changed during a lab or an investigation.
constant
Objects that let light partially pass through are ______________________ (transparent, translucent, opaque).
translucent
When light is __________________ it remains in the object as energy (absorbed, diffused, reflected, refracted).
absorbed
A cardboard box is an example of a ______________ (transparent, translucent, opaque) material.
opaque
A two-way mirror acts like a ____________________ on one side and a _____________________ on the other side, so it _________________ and _____________________ light.
mirror
window
reflects
transmits
Water is an example of a ________________ (transparent, translucent, opaque) material.
transparent
When light passes through a curved object like a lens, the light is _____ at different angles (absorbed, diffused, reflected, refracted).
refracted
When white light passes through a prism the wavelengths ____________________ (bounce, bend, or scatter) breaking the light into separate colors.
bend
Write one complete sentence for each of the following vocabulary words (reflection, refraction, diffusion, and absorption) to explain how light travels in the following ways:
Reflection occurs when light hits a smooth surface and bounces back at the same angle the light hit the surface.
Refraction occurs when light passes through a new medium, slows down, and bends.
Diffusion occurs when light hits a bumpy surface and scatters.
Absorption occurs when light enters a material and is stored in the material as energy.
If an object appears blue to us, all of the other color wavelengths are ____________________, while blue is ______________________.
absorbed
reflected
Sunglass lenses are an example of a __________________ (transparent, translucent, opaque) material.
translucent
When light enters a different medium, such as a liquid or glass, the wavelengths travel ________________ (faster, slower, the same speed).
slower
When light enters a different medium, such as a liquid or glass, the wavelengths are _____________________________ (absorbed, diffused, reflected, refracted).
refracted
Answer the following question using complete sentences. Remember to have at least 2-3 pieces of evidence and a conclusion sentence. The essay response should be 4 to 5 sentences.
Question: In order to be comfortable outside on an extremely hot day, what would be the best color to wear?
In order to be comfortable outside, the best color to wear is white. Evidence to support that white is the best color to wear is white reflects light. Black on the other hand absorbs light and holds in the heat. Another example to support this idea is the white line of the crosswalk is cooler than the blacktop. Based on this evidence, white is the best color to wear to stay cool on a hot summer day.