Miller,+Jordyn

One of the things that really interested me in the mentos and coke article is that when you put an ice cube in a soda it makes the soda more flat rather than fizzier. Since soda is fizzier when it is at a lower temperature it really confused me as of why an ice cube takes some of the fizz away. Another thing that interested me was that the fruity mentos and the sugar free ones, are made differently than the regular mint mentos I always thought that they were made the same way, but apparently I was wrong. The final thing that interested me was that mint mentos appear very smooth but if you looked at them under a microscope you would come to find that they have a lot of pointy edges and bumps.

Jordyn, It might be interesting to look at a Mentos under a microscope! 5 stars. MW

Redefining the Kilogram

This article was very hard for me to understand. I didn't understand all the big math equations and stuff. One thing that i found interesting was that the kilogram is one of seven base units of the international system of units. I also found it interesting that the kilogram is the last of the SI base units that is still defined be a physical artifact rather than by a physical property of nature. I also found it interesting that the international base unit is losing weight compared to the other copies they have, but yet they still use the one that is losing weight. The Most Valuable thing is this article is that the international prototype is losing weight and they aren't sure why.

Jordyn, Looks good. The article is pretty technical but you got the main points! 5 stars. MW

Crude Oil

The video was kind of hard to understand, but I did learn a few things from it. One thing that I learned is that crude oil is separated into different types of liquids. The most interesting point was that crude oil can be separated into many different liquids to make different objects. The molecules with a lower boiling point rise to the top to create a thinner liquid. And the molecules with a higher boiling point stay to the bottom and make a thicker liquid. I never new that one thing could be separated into many different things.

Jordyn, Looks like you pulled out one of the most important points. 5 stars. MW

Motion Detectors

I think this article was pretty interesting. I already knew about the motion detectors that go off when someone blocks the light source. I also knew that animals, like bats use echo-location to see their surroundings in the dark. I also knew about Einstein winning a Nobel prize. However, a few things I didn’t know before reading this article I did not know that snakes had thermal vision. I also did not know that people used sound as a manner of motion detecting. Lastly I did now know that there were systems of using thermal signatures to spot or detect hidden people or objects.

Jordyn, Looks good! 5 stars. MW

Where Do Chemical Elements Come From?

Elements are formed by a explosion that releases chemical and billions of neutrons that combine and break down until it can’t get any more.

OK. 5 stars. MW

Sugar An Unusual Explosive

This article was really surprising to me. I never knew that everyday household items could cause explosions. I found it interesting that sugar particles caused a factory to explode! I never realized that sugar to do such a thing. I learned from the article that any particles could explode with in contact of a flame. The article stated that CO2 or O2 gas causes combustion. We also learned about that in class. Another thing in the article that was related to class, was balancing the equations. The equations shown in the article were all balanced.

Jordyn, OK but CO2 doesn't usually cause explosions. O2 and a fuel for sure! 5 stars. MW

Helium Balloons

This article was very interesting. The article was about floating balloons that have helium in them. The first thing I found interesting is that pressure will alter things that float. Another thing I found interesting is that there is a formula to see if things will float. The third thing that I found to be the most interesting fact is that density is closely related to the floating of objects. Anything that affects density, affects things that float.

Jordyn, OK. Pretty basic but accurate with respect to floatation and density. 5 stars. MW