2. What objects can you see
from where you are sitting
that make their own light?
3. Luminous Sources
A luminous source is an object that can
create light.
Let’s see how many we
can name in 90 seconds!
4. Luminous Sources
The most important luminous source is
the sun.
Others include:
– Fire
– Electric Lights
– Fireworks
– Lightning
5. Non-Luminous Objects
Non-luminous objects do not create light.
So how are we able to see them?
We can see non-luminous
objects because of the light
reflected off of them.
8. Luminous Source Worksheet
1. Circle the luminous sources
2. Label the luminous sources
3. Draw how the one-armed man would be
able to watch television.
4. Draw how the man would be able to see
the chair.
13. Fact or Opinion?
What is the difference between fact and
opinion?
Clue: If it is a fact then you could prove it
is correct with an experiment!
Over many centuries, people have had
very different opinions about what light is
and how we see things.
14. Which are fact and which are
opinion?
Light travels in straight lines.
An object has to be luminous to be visible.
Luminous objects give off light because
they are hot.
If you close your eyes then the universe
may not exist until you open them.
When you look at something, light travels
from your eyes to the object.
Scientific Fact Opinion
15. Under The Sea
Deep in the sea... It can be so deep that
light from the sun can not be seen.
How can animals survive down here?
Video Clip