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grade 3
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Give an example of transparent material.
clear glass
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When light bounces off an object it is called?
Reflection
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True or False: Rubbing two objects against each other can produce heat.
True
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A frosted glass door is an example of what source of light?
Translucent
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True or False: Plug electric appliances into an outlet when your hands or your body is wet.
False
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Give an example of natural light.
moon
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True or False: Stay away from fallen electric wires. They are dangerous.
True
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Give an example of artificial light.
candle
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This materials allow light to passthrough with almost no disturbance.
Transparent
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This energy is the most common form of energy.
Electricity
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This is the bending of light waves as they pass from one substance to another.
Refraction
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Heat coming from the Sun is called?
Solar heat
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Give one example of artificial light.
flashlight, candle, light bulb, lamp
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Give an example of Opaque
any dark color or blacking materials
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This materials completely block light from passing.
Opaque
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Give one example of natural light.
sun, moon, firefly, stars, jellyfish
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Give an example of opaque
Dark object
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This materials allow only part of the light to pass through, while also bouncing it in many new directions.
Translucent
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Give an object that uses electricity to works.
any appliances
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True or False: Burning is when an object burns, it produce a flame that gives cold.
False
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True or False: We use light for reading.
True
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