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True or False: We can see objects when there is no source of light.
False.
True or False: We can see the objects when light travels from the Sun,  reflects off them and travels into our eyes.
True.
True or False: A forest fire is a natural source of light.
True.
Is a fire an artificial or natural light source?
It's can be an artificial light source or a natural light source.
Is lightning an artificial or natural light source?
It's a natural light source.
Why we can see the moon at night?
It reflects light from the Sun.
Name two artificial light sources.
Any possible answers.
Name two natural light sources.
Anypossible answers.
Can you name three objects that can give off light of their own (natural or artificial)?
Any possible answers.
In the solar system,the Earth and Mars are light sources.
False.
The moon light is the natural light source.
False.
The stars are Suns too and give off natural light!
True.
Look at the picture! Can lightning give off light of its own? Is it natural or artificial light?
Yes and it is a natural light source.
Can we see the objects when there is no light? 
No, we can't.
What are these? Are the natural or artificial sources of light?
They are stars. They're natural.
Is this a source of light? Is it natural or artifical?
Yes, it is. It's natural.
Most objects do not give off light of their own.
True.
True or False: These are sources of light. 
True.
The moon reflects light from the __.
Sun
What is this? Does it give off light of its own?
It's the Sun and yes. 
Books, pencils and rulers are sources of light.
False.
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