Grade 6: Movement of Light

A student placed a pencil in a cup of water.  The pencil appears broken because light-

• always travels in a straight line
• bends when it passes through water
• makes the water in the glass evaporate
• reflects the pencil on the water's surface

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NGSS.MS-PS4-2

The bouncing of light off an object

• basketball

• refraction

• reflection

• echo

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NGSS.MS-PS4-2

The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-

• absorbed
• stopped
• reflected
• refracted

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NGSS.MS-PS4-2

The arrows in the diagrams below represent light. Which diagram best shows how a

glass mirror would reflect light?

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NGSS.MS-PS4-2

Materials that do not allow light to pass through?

• clear

• opaque

• transparent

• translucent

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NGSS.4-PS4-2

• Reflection
• Refraction

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Which window is opaque?

• Window 1
• Window 2
• Window 3
• None

Refraction is when light...

• Bounces

• Transmits

• Bends

• Absorbs

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NGSS.MS-PS4-2

How is refraction different from reflection.

• Reflection is the bouncing of light off an object and refraction is the bending of light when it moves through one kind of matter to another.
• Reflections is the bending of light when it moves through one kind of matter to another and refraction is the bouncing of light off an object.

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NGSS.MS-PS4-2

Which diagram correctly shows how light rays are reflected from the surface?

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NGSS.MS-PS4-2