3. Rainbow is one of optic phenomena that happens in the
atmosphere of the earth naturally. We can see it at mountin range,
or when it is cloudy, or when it is raining and rising of sun. We have to
be the other side for looking. We just can see it a half of circle form, but
acctually the rainbow is a circle form. We can see it perfectly, if it is seen
by standing in the high place. It is real that rainbow is a circle form not
like parabola form.
Red colour is more dominant than another colour caused by
having biggest wave between others. Therefore the red colour is in the
highest order and purple colour is in lowest order. How rainbow is
formed? Try to watch it when light of sun concerns a 90-degree angle
mirror or a glass prism side, or surface of soap foam. We can see colours
on the light. The light is rayyed to be some wave lenght of light that it is
seen by our eyes as red, orange, yellow, green, blue, indigo and purple.
These colours are components of light that they are called visible light.
The other component is invisible light such as infrared (red is in the right
side), and ultraviolet (bright red is in the left side).
So, we can see the beautiful rainbow because there are some
processes to be beautiful rainbow that it appears in the sky.
4. Find out:
1. What does the text tell you ?
The text tell us about how ranbow is formed
2. What is rainbow ?
Rainbow is one of optic phenomena that happens in the
atmosphere of the earth naturally.
3. How we can see the rainbow perfectly ?
We can see it perfectly, if it is seen by standing in the
high place.
5. 4. Why red colour in the rainbow is dominant ?
Red colour is more dominant than another colour caused by
having biggest wave between others. Therefore the red colour
is in the highest order and purple colour is in lowest order.
5. How rainbow is formed ?
when light of sun concerns a 90-degree angle mirror or a glass
prism side, or surface of soap foam. We can see colours on the
light. The light is rayyed to be some wave lenght of light that it
is seen by our eyes as red, orange, yellow, green, blue, indigo
and purple. These colours are components of light that they are
called visible light. The other component is invisible light such as
infrared (red is in the right side), and ultraviolet (bright red is in
the left side).
6. 6. We can see it perfectly, if it is seen by
standing in the high place. In underlined refers
to ?
“it” refers to rainbow
7. How many colours can we see at the rainbow
? What are they ?
There are Seven colours. They are red, orange, yellow, green,
blue, indigo and purple
