Sources from previous posts

I just realised that I forgot to write down sources for my previous posts about research on balloons.

I got the info from:

• http://en.wikipedia.org/wiki/Balloon
• http://www.balloonhq.com/faq/making.html

Wikipedia

So did you know that...

Party balloons are mostly made of natural latex tapped from rubber trees, and can be filled with air, helium, water, or any other suitable liquid or gas. The rubber's elasticity makes the volume adjustable.When rubber balloons are filled with helium so that they float, they typically retain their buoyancy for only a day or so. The enclosed helium atoms escape through small pores in the latex which are larger than the helium atoms. Balloons filled with air usually hold their size and shape much longer.

Even a perfect rubber balloon eventually loses gas to the outside. The process by which a substance or solute migrates from a region of high concentration, through a barrier or membrane, to a region of lower concentration is called diffusion. The inside of balloons can be treated with a special gel (for instance, the polymer solution sold under the "Hi Float" brand) which coats the inside of the balloon to reduce the helium leakage, thus increasing float time to a week or longer.

Source: http://en.wikipedia.org/wiki/Balloon

I need help...

I'm finding it a little hard to find information about balloons and their durability under different weather conditions.

Any advice?

VARIABLES

Just in case you didn't see my previous previous previous post...

The independent variable in my experiment would be the location of the balloon.

The dependent variable in my experiment would be the length of time that it takes to deflate.

The controlled variable in my experiment would be the temperature the balloon is in and the size of the balloon.

Climate Graph =] (2)

At geography a few days ago, I realised that I might have done my climate graph wrong. Apparently, the right hand axis is only supposed to go half way down, not the whole way down. So do I have to do it again?

Climate Graph =]

This took me ageeeessss... so I really hope I did it right...

What are balloons made of?

According to Wikipedia, balloons: can be made from materials such as rubber, latex, polychloroprene, or a nylonfabric, while some early balloons were sometimes made of dried animal bladders.

And according to Balloon HQ presents: How Balloons Are Made -

Balloons are manufactured from a liquid rubber called latex. The balloon gets its color from the pigment that is added to the latex. Pigments are both organic and inorganic compounds that absorb certain wavelengths of visible light and reflect others. The strength of balloons can be affected by the pigment if the pigment particle is large in size and interferes with the film continuity and if the pigment reacts with any of the other ingredients in the balloon.