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WELCOME!
This powerpoint is INTERACTIVE !! So:
Follow the directions Click on the links And …. Explore, go crazy, whatever
What is an Atomic Bomb?
It is a weapon in which an enormous amount of energy is released through nuclear fission or fusion.
They are very dangerous!! Atomic explosions can be made
through fission and fusion of Uranium-235.
Take a guess! Discuss it with
a friend.
Atomic bombs become famous
During World War II, Hitler
was developing a plan to create
the atomic bomb.
A Jewish scientist was afraid what Hitler might
do when he had the atomic bomb, so he
wrote President Roosevelt convincing him to try and beat Germany to the first
atomic bomb.
In 1942, Roosevelt
gave the ok for scientists
to start the “Manhattan
Project”, the search for the atomic bomb
in science.
Albert Einstein
even signed
the letter to
Roosevelt!
Even after Germany had given up, America pursued on. After
the first test, the scientists realized just how much power
they were working with was far more than they had originally
imagined.
1
5
4
32
Atomic History Con’t.
After Hitler’s suicide, the
scientists were sure that such a weapon was no
longer necessary.
The scientists wrote a strong petition to the
US government expressing their
opinion.
76
He then gave the order for the bomb to be dropped.
Unfortunately, President
Truman ignored their request and insisted
that their work had not gone to
waste.
9
8
WOW!
How are atomic bombs made? (Fusion)S
tep
1 Isotopes of hydrogen are smashed together at high pressures.
Ste
p 2 This creates helium, and releases a LOT of energy.
Ste
p 3 The
energy can be used for weaponry.
How are atomic bombs made? (Fission)S
tep
1 1 neutron splits an atom. S
tep
2 After it’s split, another neutron is released.
Ste
p 3 Then that
neutron splits another, until all the atoms are split.
So why do I care?
Atoms, which are so unbelievably small that they needed a new measurement to express their size, are able to create a weapon that can cause:
To learn move about the effects of atomic bombs, visit:http://library.thinkquest.org/26742/nuclear.html
Blast wave
s
Residual
nuclear radiati
on
Initial nuclear radiati
on
Thermal
Radiation
Are atomic bombs dangerous/illegal?
The American government has a special license to use nuclear bombs.
The radioactive materials needed to build an atomic bomb are illegal to obtain, so building one is as well.
Also, by having an atomic bomb, you can hurt others. So yes, it’s pretty much illegal.
What are they used for?
Atomic bombs are used simply for weaponry and war means.
However, some are built completely for study.
Some info:
For some simple atomic bomb info. http://encyclopedia.kids.net.au/page/at/Atomic_bomb
http://www.qa02.com/edu/how-does-an-atom-bomb-work.html
http://library.thinkquest.org/17940/texts/fission/fission.html
http://answers.askkids.com/How_Stuff_Works/how_does_the_atom_bomb_work
http://library.thinkquest.org/17940/texts/ppcno_cycles/ppcno_cycles.html
Games!
Try my Testmoz! http://testmoz.com/6499
Play a fun game about nuclear fission! http://togetherville.com/games-for-kids/nuclear-fission-balls?m=1
Do a puzzle with a uranium atom! http://www.neok12.com/slide-puzzle/Atom-05.htm
Learning Links:
Watch some nuclear videos! http://www.neok12.com/Nuclear-Power.htm
Learn about nuclear fusion in the sun! http://www.goalfinder.com/product.asp?productid=85
http://www.teachervision.fen.com/tv/printables/concepts/PStransparencies_9.pdf