Translate to my language

Monday, January 16, 2017

Light sources and reflectors

We have been learning about light sources and reflectors.
Light sources give off light which we can see in the dark.
Reflectors do not: Reflectors only work when a light shines on them.
Reflectors don't work in the dark without a light shining on them.
We tried this out today.
We used a dark box, put an object in it, guessed whether the object is a reflector or light source, shut the lid and had a look.
 Only the torch, the glow-in-the-dark stone and the flashing pen were light sources.
The others (including the mirror) were reflectors.
Did you know that the sun is a light source but the moon is not.
The moon reflects light from the sun; it is a reflector!

No comments: