Dgfs

Páginas: 8 (1968 palabras) Publicado: 13 de enero de 2013
SECONDARY 64
JAIME SABINES GUTIERREZ
EXPERIMENTS
ALBUM

PRODUC 1
3 (A)

NAME: FERNANDO PAEZ DIAZ
ROLL: 32
TEACHER NAMES: ANA MARGARITA FLORES BARBOSA

INDEX
EXPERIMENT NAME PAGE
1.- VOLCANO…………………………………3
2.- AMAZING EGG EXPERIMENT…………4
3.- SINKING AND FLOATING SODA CANS…………………........................................5
4.- REAL LAVA LAMP……………………….6
5.- LUMPY LIQUIDS AND SQUISHYSOLIDS…………………………………………7
6.- GAS ROCKET EXPERIMENT…………...8
7.- CRAZY MOMENT…………………………9
8.- CHANGE A WHITE FLOWER TO ANY COLOR……………………………………….10
9.- THE FIREPROOF BALLON……………11

Volcano
What you'll need:
* Baking Soda (make sure it's not baking powder)
* Vinegar
* A container to hold everything and avoid a big mess!
* Paper towels or a cloth (just in case)
Instructions:
1.Place some of the baking soda into your container.
2. Pour in some of the vinegar
3. Watch as the reaction takes place!

What's happening?
The baking soda (sodium bicarbonate) is a base while the vinegar (acetic acid) is an acid. When they react together they form carbonic acid which is very unstable, it instantly breaks apart into water and carbon dioxide, which creates all the fizzingas it escapes the solution.
For extra effect you can make a realistic looking volcano. It takes some craft skills but it will make your vinegar and baking soda eruptions will look even more impressive!

 

Amazing Egg Experiments
Squeeze an egg as hard as you can without breaking it. Learn how to tell a raw egg from a hardboiled egg without cracking the shell. Perform the amazing floatingegg trick. It's Egg Olympics in your very own kitchen!
Materials
* Eggs
* Salt
* Water
* Rubber band


STEPS
Eggs are amazingly strong despite their reputation for being so fragile. Place an egg in the palm of your hand. Close your hand so that your fingers are completely wrapped around the egg. Squeeze the egg by applying even pressure allaround the shell. To everyone's amazement (mostly your own) the egg will not break. If you're a little nervous about the outcome, try sealing the raw egg in a zipper-lock bag before putting the squeeze on it, or hold the egg over the sink if you're in the super-brave category.
Now hold the egg between your thumb and forefinger and squeeze the top and bottom of the egg. Are you covered in egg yolk?Why not?
Finally, hold the egg in the palm of your hand. Press only on one side of the shell. Do not squeeze the egg - just press on the side. Uh oh. Why do you think that happened?

WHAT HAPPENS
The egg's unique shape gives it tremendous strength, despite its fragility. Eggs are similar in shape to a 3-dimensional arch, one of the strongest architectural forms. The egg is strongest at the topand the bottom (or at the highest point of the arch). That's why the egg doesn't break when you add pressure to both ends. The curved form of the shell also distributes pressure evenly all over the shell rather than concentrating it at any one point. By completely surrounding the egg with your hand, the pressure you apply by squeezing is distributed evenly all over the egg. However, eggs do notstand up well to uneven forces which is why they crack easily on the side of a bowl (or why it cracked when you just pushed on one side). Be careful not to wear a ring while performing our squeezing act. The uneven pressure of the ring against the shell will result in an amusing display of flying egg yolk for your audience members. This also explains how a hen can sit on an egg and not break it, buta tiny little chick can break through the eggshell - the weight of the hen is evenly distributed over the egg, while the pecking of the chick is an uneven force directed at just one spot on the egg.
SINKING AND FLOATING SODA CANS
For this experiment you will need:
MATERIALS
• several unopened cans of regular soda of different varieties
• several unopened cans of diet soda of different...
Leer documento completo

Regístrate para leer el documento completo.

Estos documentos también te pueden resultar útiles

  • Dgfs

Conviértase en miembro formal de Buenas Tareas

INSCRÍBETE - ES GRATIS