Predict Object Visibility - 4th Grade Science
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What happens to visibility when an object absorbs most of the light that hits it?
What happens to visibility when an object absorbs most of the light that hits it?
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It looks darker and is harder to see. Absorbed light doesn't reach our eyes.
It looks darker and is harder to see. Absorbed light doesn't reach our eyes.
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What is a shadow?
What is a shadow?
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A dark area where light is blocked by an object. Forms when something blocks light's path.
A dark area where light is blocked by an object. Forms when something blocks light's path.
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Which color usually reflects more light and is easier to see: white or black?
Which color usually reflects more light and is easier to see: white or black?
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White. White surfaces reflect most wavelengths; black absorbs them.
White. White surfaces reflect most wavelengths; black absorbs them.
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What three things must happen for you to see a non-glowing object?
What three things must happen for you to see a non-glowing object?
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Light source, light reflects off object, light enters your eyes. These three steps create the path from object to eye.
Light source, light reflects off object, light enters your eyes. These three steps create the path from object to eye.
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What is reflection in the context of light and visibility?
What is reflection in the context of light and visibility?
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Light bouncing off a surface. Light changes direction when it hits a surface.
Light bouncing off a surface. Light changes direction when it hits a surface.
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Which type of object can be seen in complete darkness: a lamp or a book?
Which type of object can be seen in complete darkness: a lamp or a book?
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A lamp. Lamps produce their own light; books need external light.
A lamp. Lamps produce their own light; books need external light.
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Which option best describes a light source: the Sun or the Moon?
Which option best describes a light source: the Sun or the Moon?
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The Sun. The Sun generates light; the Moon only reflects it.
The Sun. The Sun generates light; the Moon only reflects it.
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What is the main reason the Moon is visible at night?
What is the main reason the Moon is visible at night?
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It reflects sunlight. The Moon doesn't produce light but acts like a giant mirror.
It reflects sunlight. The Moon doesn't produce light but acts like a giant mirror.
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What does transparent mean for light and visibility?
What does transparent mean for light and visibility?
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It lets most light pass through; you can see through it. Clear materials allow light to travel straight through.
It lets most light pass through; you can see through it. Clear materials allow light to travel straight through.
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What does translucent mean for light and visibility?
What does translucent mean for light and visibility?
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It lets some light through; objects look blurry. Light scatters as it passes through, causing blur.
It lets some light through; objects look blurry. Light scatters as it passes through, causing blur.
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Which material is most likely translucent: wax paper or clear glass?
Which material is most likely translucent: wax paper or clear glass?
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Wax paper. Wax paper scatters light; clear glass doesn't.
Wax paper. Wax paper scatters light; clear glass doesn't.
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Which option makes an object easier to see: more light shining on it or less light?
Which option makes an object easier to see: more light shining on it or less light?
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More light shining on it. More light means more reflection to see.
More light shining on it. More light means more reflection to see.
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Which option blocks light and reduces visibility: clear air or thick fog?
Which option blocks light and reduces visibility: clear air or thick fog?
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Thick fog. Fog particles scatter and absorb light.
Thick fog. Fog particles scatter and absorb light.
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Which surface reflects more light: a mirror or a black sweater?
Which surface reflects more light: a mirror or a black sweater?
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A mirror. Smooth surfaces reflect more light than dark, fuzzy ones.
A mirror. Smooth surfaces reflect more light than dark, fuzzy ones.
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If a book is behind a wall from your viewpoint, what is the best prediction about visibility?
If a book is behind a wall from your viewpoint, what is the best prediction about visibility?
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It will not be visible because the wall blocks the light. Opaque objects block light paths completely.
It will not be visible because the wall blocks the light. Opaque objects block light paths completely.
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Which option best predicts visibility: a red apple in bright light or in a dark closet?
Which option best predicts visibility: a red apple in bright light or in a dark closet?
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In bright light. Light reflects off the apple; darkness provides no light.
In bright light. Light reflects off the apple; darkness provides no light.
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What does opaque mean for light and visibility?
What does opaque mean for light and visibility?
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It blocks light; you cannot see through it. No light passes through opaque materials.
It blocks light; you cannot see through it. No light passes through opaque materials.
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What word describes a material that lets some light through but makes images blurry?
What word describes a material that lets some light through but makes images blurry?
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Translucent. Scatters light particles, creating a foggy appearance.
Translucent. Scatters light particles, creating a foggy appearance.
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What word describes a material that does not let light pass through so you cannot see through it?
What word describes a material that does not let light pass through so you cannot see through it?
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Opaque. Blocks all light transmission, creating shadows.
Opaque. Blocks all light transmission, creating shadows.
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Which option is most likely to be visible in a completely dark room: a flashlight (on) or a chair?
Which option is most likely to be visible in a completely dark room: a flashlight (on) or a chair?
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A flashlight (on). Only light sources are visible without external illumination.
A flashlight (on). Only light sources are visible without external illumination.
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