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