1. Science project
work

2. Topic –
LighT

3. Light
Light
is a form of
energy which help to
see an object

4. WHERE DOES LIGHT COME
FROM?
Most light comes from things that give off
heat. Natural light comes from the Sun, other
stars, and certain animals that glow in the
dark. Artificial light comes from things that
people make. The flame of a candle gives off
artificial light. Electric light bulbs give off
artificial light.

5. HOW LIGHT TRAVELS
Light travels at very high speed. It travels
through space faster than anything we know
of. You can tell that light travels faster than
sound when you see lightning. You’ll notice
that you usually have to wait a few seconds
after the lightning bolt to hear thunder.
Thunder is the sound that lightning makes.

6. HOW LIGHT TRAVELS
The speed of light through empty space is
about 186,000 miles per second (about
300,000 kilometers per second).
Astronomers talk about vast distances in
space as light-years. A light-year is how far a
beam of light can travel in one year, or about
5.8 trillion miles (about 9.5 trillion kilometers).

7. COLORS OF LIGHT
Sunlight is made up of every color in the
rainbow. When sunlight is spread out into all
its colors, it makes what scientists call a
spectrum. A rainbow is a spectrum. In a
spectrum, each color flows into the color next
to it.

8. LIGHT BOUNCES
Light travels in a straight line until it runs into
something. What happens then depends
upon what the light runs into.
Light rays go right through transparent
substances. Clear window glass is
transparent, so sunlight goes right through.
That is why you can see through a
windowpane.

9. •Topic – eye

10. $ THANKS FOR
YOUR KIND
CONSIDERATION $