Tuesday, September 21, 2010

Acid Lab

While doing an acid lab, we came up with a hypothesis that the name brand would work better than the cheap brand.  We discovered that some products like Tums and Rolaids, act different in Milk of Magniesa. The tums became very bubbly and turned strange colors. Then, we were able to use acid strips to see what color they changed. Most of them where a 5, but there was one that turned a 7. Most of the stomach medicain are like really chalky, and taste very nasty. But we came to a conclusion that Rolaids works the best.

Monday, September 13, 2010

Water Properties

This week, my class has been studying water; its molecules and their properties. Water isn't a tear drop shape like everyone thinks. It's actually like a blob. I always thought that it was tear but its not. In the morning, dew on leaves are a spherical shape because the shape increases the density of the water drops. Also, if you try and put as much water as you can on a penny, it kind of has a bent shape on the top. Thats because of the surface tension. Also, while holding a long, wet string vertically, we found out that the water kind of attached to each other. The water had a swirl to it while it when down the string. How it got that way, I'm not for sure, but I know I will find out.
It takes more energy to turn a solid to a liquid, then it is to take a liquid to a gas. Water molecules are cohesive and adhesive. Cohesive is when water flows freely, but the water molecules don't separate from each other. Adhesive is the opposite.
Water is a very funny element that we have on our Earth, and I want to learn more about it.

Friday, September 3, 2010

Double Blind Placebo

While reading about double-blind placebo at www.clinicaltrials.gov, I've learned that its purpose of the study is to Copaxone in CD patients. Crohns disease is a chronic disorder that affects the digestive system. If effects people in their late teens or early twenties, but it can appear at any age. Some signs are weight loss, fever, and abdominal pain. It also attacks the nervous system, and makes the system very weak.
The drug that the doctors would use is Idebenone. This drug like a deitary supplement.