Cork Launching

In a recently completed lab, we launched corks with baking soda with vinnegar. The carbon dioxide produced by this foaming mixture has to escape so it pushes the cork out of the test tube. At first, my group and me were using too much baking soda, which didn't launch the cap to the window, which was our objective. Then, we tried using more vinnegar with less baking soda. This made the cork fly a huge 690 centimeters. We tried this method over and over again (about 4 times) because the only thing wrong with our launching was our aim. Finally, we aimed it at the wright angle and the cork sailed through the room and straight to the room. My group and me were extatic.

density cylinder

In our science class, we made something called a density cylinder. A density cylinder is something when liquids balance on each other and don't mix. To make one, we had five different substances. We needed to find the mass of each substance and divide it by 15 milliliters or the volume of the substances to get the densities. Then we had to slowly pour the substances in at an angle and they would balance. It looked so cool. I was amazed at the results. I had no idea that liquids could possibly balance on top each other. It turns out that if you get different liquids with different densities and pour them in from most dense to least dense that they will balance on top of each other. This was one of the coolest science experiments I've ever done in my life as a student.

Robofish

M.I.T. has created a new robot fish called Robofish for oceanography purposes ( You can read this article athttp://www.cnn.com/2009/TECH/science/08/31/robotic.fish.mit/index.html This new robotic fish is way better than the older Robotuna. The newer generation of robotic fish can go deeper than a submarine, can move exactly like a real fish, and it is able to take underwater measurements, yet it only cost them a few hundred dollars to make. Unlike the Robotuna, this robot fish is made of only ten parts and can withstand harsh weather. Amazingly, they have turned away from this new robot and are now looking into making Manta-ray and Salamander robots. One day, this new robot may change the way we view the ocean. It may see what is at the bottom of the Marianna Trench or find a new shipwreck. For all we know, it may find Amelia Earhart's lost plane, or find the real bottom of the ocean. There's no end to what this new piece of technology can do.