Thursday, May 24, 2012

Xtranormal

 This is my xtranormal about the water cycle!

http://www.xtranormal.com/watch/13449589/water-cycle

Wednesday, May 23, 2012

Current Events

Every Black Hole Contains a New Universe

This article is about universes, especially ours. Nikodem Poplawski, the writer of this article, proposed a new theory that in the center of every black hole, a new universe is inside. This happens inside black holes in our universe and universes that contain the black hole we are currently inside, and can happen at any time. Spacetime torsion is a force that causes the black holes to form new universes. Spacetime torsion is when spacetime twists around, creating energy, and that energy creates matter, all in a tiny spot.

The theory of baby universes inside black holes, and the theory of spacetime torsion, can help us figure out exactly how our universe was created and where the matter came from. It makes more sense than the traditional "big bang theory" and integrates elements from quantinum mechanics and the quantinum theory of gravity. It even describes the beginning moments of our universe where the "big bang theory" doesn't. It corresponds with the universes shape and distribution of mass. This theory could also help us explain other events in spacetime using the theory of torsion.

Sunday, May 13, 2012

Convection Currents

                On the ninth of May, our science class did a lab on convection currents. We are learning about weather these last few months, and this lab helps us see how heat affects the movement of water or air. These currents help produce wind and weather. Before the lab we were asked what our hypothesis was. "If air or water is heated, it rises," was the answer. To start the lab, we filled a cup with hot water that was colored yellow.  We secured plastic wrap over the top and placed it in a big beaker of cold water that was not died. I poked a hole in the plastic wrap. It took me a few tries to get the hole big enough, and it was still a little small. I watched as the warm water rose up to the top of the beaker. This shows that the warm water is less dense and more spread out than the cool water, so the cool water sinks and the warm water rises, just like in my hypothesis. This lab is a great model to show how weather works because you can actually see the usually invisible effects of heat on water or air. We could have improved this model by making it easier to poke a hole in the plastic wrap. We also could have shown both sides of convection currents by holding a cup full of cold water upside down in a beaker full of hot water and then letting the cold water go, showing us that it would sink. That would of shown us how cool air would sink under warm air, also causing wind. The original experiment helped our class learn about how heat effects how air moves. When air heats up, it rises, and the cool air that was above it before rushes down to fill the space that the warm air left, just like the water did in our experiment.

Tuesday, May 8, 2012

Its a bird! Its a plane! Its SUPERMOON!

Science Current Events
May 8, 2012

          The biggest full moon that the world is going to see this year shone two days ago, on May 6th. The moon was about 220,000 miles from earth, which is 17055 miles closer to earth than usual. This annual phenomenon is called the "Supermoon" and is a thrilling sight to look forward to. This moon will bring especially high tides because the moon pulls the tides, and it is much closer, therefore adding extra force upwards. I think the Supermoon is pretty exciting. I always seem to notice the moon and two days ago, it was spectacular.





http://www.foxnews.com/scitech/2012/05/04/supermoon-biggest-brightest-moon-year-to-come-saturday/

Monday, February 6, 2012

This Exciting Week: States of Matter+Fire=Awesome!

             This week in science class we learned about states of matter by doing oodles of fun experiments. First, we made slime by mixing glue with water and borax, a cleaning liquid. It was very fun, and i learned how to measure correctly AND how to basically knead in the food coloring into my slime. The slime was a colloid, which is a mix between a liquid and a solid. In this substance, the water molecules are held up by the borax and glue molecules, so it becomes a colloid. That was a chemical change because the molecules rearranged into a new compound. The experiment we did after that was carbon vs. candle. First, we lit a small candle and watched it burn. That was our control in our experiment. Next, we lit the big candle. Right after that we mixed some baking soda and vinegar together. I learned not to pour too much, because my group did and it overflowed right over the cup! (this could be bad if i am ever cooking or doing a more dangerous lab) We cleaned it up, then we did it correctly. We held up the cup full of baking soda and vinegar up to the candle- and the flame went out! This is because the baking soda and vinegar combine to make carbon dioxide. This is a chemical change, because the vinegar and baking soda combine to make a new substance, which is carbon dioxide. Fire needs oxygen, and when you put carbon dioxide up to the flame, it smothers the oxygen around it and causes it to extinguish. Now i understand how a fire extinguisher works! The third lab we did that week was roasting marshmallows. Yes, that sounds like something you do at a camp, not in a lab, but it has surprising science background. When i put my marshmallow up to the flame, the fire heated up the sugar in the marshmallows, causing it to caramelize, and then when it got even hotter, char. When i tasted the blackened part of the marshmallow, it tasted bitter and burnt, like charcoal. I did not like that taste. This taught me not to overcook food, or else it will taste like the burnt marshmellow. This is a chemical change called oxidation. This is when some pieces of the marshmallow burn up and are sent into the air. The blackened parts are in the process of burning. The last lab we did this week was burning pure sugar. We took a sugar cube and we crushed it, making that a physical change. It changed form but not its molecular structure. Next, we put sugar in water, and swirled it in. That is a physical change because if you evaporate the water, then the sugar would still be left. The sugar is still unchanged, it is just distributed around the water. Finally, we took a sugar cube, broke it up, placed it in a test tube and put it over the bunsen burner. It was quick to burn, and it made a black substance that looked an awful lot like tar. It immediately hardened. This is a chemical change because sugar is a substance made of carbon and water. When you burn it, the water evaporates leaving only the carbon behind. This helps me learn about sugar, and i can learn why and how it heats up. It also helps me learn how fire can change a substance.

Sunday, January 8, 2012

Mixture Experiment

On Friday i did a mixture lab. This is how you separate a mixture.

1. Take out the plastic fly with the spoon.
2. Filter the water through the filter paper and put it in the big beaker. Put it on the bunson burner.
3. Now, spoon out all of the lima beans with the plastic spoon and put them on the tray.
4. Next, spoon out the toothpicks and put them on the tray.
5. Put the magnet in the cup with the sand in it and get all the magnets out!
6. Take the water off the bunson burner (hopefully it will be evaporated) and what is left is salt.

The 7 items are- lima beans, toothpicks, a plastic fly, water, sand, magnets, and salt!

Monday, January 2, 2012

Extra Credit

Over the break i read the book "Angels and Demons" by Dan Brown. This book coincidentally has a lot to do with science. It is about a fierce conflict between science and religion. This book starts out stating a fact that a Swiss lab actually discovered a material called antimatter. Antimatter, as they explain later, is the exact opposite of matter, and when in contact with matter, destroys itself and the matter around it. I could not believe that such a material exists! The setting at the beginning is at the largest science lab in the world, called CERN, in Geneva, Switzerland, which i researched and found that it is an actual place in real life. It is a lab for nuclear research, and in the book the characters use a few of the labs technology such as the Large Hadron Collider (which is the largest machine in the world), a reverse polarity vacuum, and a Boeing X-33. The second main character, Vittoria,  has a connection to science by being a Bio Entanglement Physicist, which means she studies how life systems interconnect, (especially aquatic species) and uses her knowledge in topics close to her work to help her throughout the book. In this book, characters are debating whether science or religion is correct, and if they can exist together. After reading the book I think that both religion and science exist in this world. Those are my thoughts on the book and how "Angels and Demons" connects to science.