Showing posts with label Science Experiments. Show all posts
Showing posts with label Science Experiments. Show all posts
Friday, March 12, 2010

The best science tricks for parties, at least a geek party!

This video shows simple science tricks that can be used to amuse friends in a party, play with children or even in a science fair. I wish you enjoy it.
Thursday, February 18, 2010

Steve Spangler teaches how to make square bubbles

Square bubbles sounds impossible, ours brains connect the word bubble with the spherical shape. However this video shows how to produce square bubbles using a science trick.
Tuesday, January 26, 2010

How to Play tennis using soap bubbles and a carpet racket

This video shows how to play tennis using a soap bubbles and a carpet racket. The soap bubbles are formed by a doubled layer of soap at extremities and a layer of water at center.
The polar part of soap molecules are bonded to the water and the nonpolar part are on the outer side.
Carpet is composed of polyester, as the bubble's outer side, so the interaction between them is very weak and the bubble do not pop out.
Monday, January 25, 2010

Flame test as you never seen before

Each chemical element has its own Identity given by the color emited when it is burning. The colors in fireworks is due a diferent kind of elements. Copper give the color green, sodium give the yellow one. This video shows a lot of diferent elements and its correspondent colors.

Science experiment - how to make butter

Learn about science and you make your own butter. Science has never tasted so good.
Sunday, January 24, 2010

Top 10 science trick for parties

This video elaborated by  Prof Richard Wiseman from the University of Hertfordshire (UK) show the best science trick that you can do to in a party to entertain your friends.

Science experiment gone wrong

Faill... Science experiment gone wrong
Friday, January 22, 2010

Eggshel and vinegar - reaction to make a rubber egg

The eggshell has calcium carbonate in its composition. Acids as vinegar (acetic acid) reacts with calcium carbonate generating calcium acetate and carbon dioxide. After all calcium carbonate be consumed will remain just the proteins of the eggshell making a elastic shell.
Tuesday, January 19, 2010

Sodium Acittate hot ice

This video shows how to make hot ice, a supper saturated solution of sodium acittate that crystallizes when you disturb it or add a small crystal.

Rainbow juice using a Universal indicator

Universal indicator is used to find out the approximated PH of some substance. This video shows at first a ph 14. As some acid is added the color starts to changes. In the end the beakers bottom have a different ph from the top, so the various colors appears.
Tuesday, December 15, 2009

Chemistry Experiment - How to make a mirror

Mirrors always fascinating the human being, the possibility to look ourselves face to face is a mark in a culture of a people. That’s why these objects were so precious in ancient times and still are for some indigenous tribes.
Nowadays it is used, beside the self admiration, in cameras, telescopes and satellites.
When the man first went to the moon, they left a mirror there, so today using a laser is possible to measure the distance earth moon very accurately.
This videos shows how to make a mirror by using the glucose to reduce a silver complex. The metallic silver is deposited in the flask forming a mirror’s surface.
Saturday, December 12, 2009

Falling Smoke

The smoke inside the bottle falls becouse it is cold. Otherwise it ascend with the warm air as we always see.

Pascal Principles and plastic bottles

Physics demonstration of Pascal principle using plastic bottles
Saturday, August 8, 2009

Learn how to do a sodium dichromate volcano


Sodium dichromate is a orange solid. During its decomposition N2 , water and chrome oxide are liberated. The total volume increase in about 30 times. Some chrome oxide dust and the heat liberated make it really seamed with a true volcano.

Thursday, July 23, 2009

The old tablecloth trick by Paul Hewitt

Paul hewitt demos, using humor, inertia and physics pulling a tablecloth out from under a table full of plates and glasses and not moving or breaking anything.

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