Noel,+Alexis

One thing that I knew before reading this article was that motion detectors pick up on moventment/motion and thats when they turn on. What I didnt know though was that there are actually several ways that they can turn on. The one way that I had no idea about was how infared can actually turn the dectectors on. The dectectors know whether it is a human or not and will turn on only if it is. I also knew that the light has an electric current. I also know that when a light is shown on a surface for a certain amout of time, it can cause electrons to be ejected and each one has a different amout of light needed to make the protons be ejected. One things that I didn't know is that intensity of the light put on the surface affects the amount of photons each light particle has, not the amount of energy. Another thing I read that I didn't know is that the beams of light that are shown in movies that protect things are actually just used in movies, they aren't really used in real life. Alexis, I had an "aha moment" on the movie thing also! Good post! 5 stars. MW

There are many things about chemistry that I do not know about. One thing that I never knew though is that when boiling materials, the temperature stays that same until all of the things of that boiling point are gone. Then, the temperature rises and boils off all the materials of that boiling point, and the process continues. One thing that I found quite interesting was the way the crude oil was being boiled. The material is very flammable, so the tube was placed in a bowl of boiling water and not on a straight flame. I never would have thought of that, but it is a lot safer then putting the tube on an open flame.

Alexis, Your point about temperature staying the same until all is boiled away is excellent! Well done. 5 stars. MW

My topic was about what makeup is made of. There is a new make up out now that is called mineral makeup. When you hear the word mineral in mineral makeup, you would expect it to be made of minerals and/or natural materials. I’ve always believed that, but what I never knew was that the companies don’t make any significant change to the products in the makeup, which doesn’t make the “new” makeup much better then what it was. I also never knew that a few of the ingredients in the makeup are completely synthetic, meaning not real at all. One more thing that I never knew before reading this article was that the makeup gets color put into it, it isn't naturally that color. Before reading this though, I already knew that preservatives (that actually aren’t in the new mineral makeup) could irritate the skin. I also knew that while the make up still has synthetic things in it, the mineral makeup still has many natural things that come from the earth in it. The last things that I knew was that all make up brands strive to make makeup that produces something called coverage.

Alexis,

Looks good. It's always a good idea to be informed about the things we wear. Good post! 5 stars! MW