Today I will tell you about PENS!
Pens are important because we always need to write something.
I have 3 points, PAST, PRESENT and FUTURE.
My first point is PAST.
Many different kinds of pens were used in the past.
This is a quill pen. It is made of a bird`s feather.
This is a reed pen.
These pens were troublesome because you always had to carry bottles of ink.
This is a video of someone writing with a bamboo pen.
Now I told you about the PAST.
Next I`ll explain about the PRESENT
Now the most popular kind of pen is a Ball-Point pen.
A ballpoint pen has a ball on the tip of the pen.
Ballpoint pens are very useful because we don`t have to carry bottles of ink.
Now I told you about the PRESENT.
But what about the FUTURE?!
Ballpoint pens have one bad point.
They can`t write upside down.
Also they can`t write in space where there is no gravity.
But this pen can!
This is the SPACE PEN.
It can write in space!
Astronauts use this pen.
Wonderful!
Also it can write underwater. Look!
