Sunday, November 17, 2013

Potential vs Kinetic

Hello its Ion_Turtle again. I'm going to talk about Potential and Kinetic energy! This time I'm going to try to explain it with video games as much as I can.

First we have to say what energy is. Energy id the ability to make something happen. In  layman's terms, if the object or person can do something it has energy.

Potential and Kinetic energy are related to movement. Kinetic energy is the energy that a moving object has. The more speed and mass an object has the more kinetic energy it has. If a bicycle is riding down a hill next to a truck at the same speed the truck will have more kinetic energy because it has more mass. Another example is if Mario and Wario are running next to each other. Wario has more kinetic energy because he is bigger. Even if Mario runs a little faster Wario will still have a little more.


Ok. Now lets get into potential energy. Potential energy is the energy that some has when it isn't moving. It is the possibility to move. The higher something is and the more mass it has gives it more potencial energy. If you have two rocks together on a cliff and they are the same size then they will have the same potential energy. If one rock is larger then it has more potential energy. Think of Mario and Wario about to jump on a Goomba. Wario will have more potential energy and will crush the Goomba harder. If Mario gets much higher then he will have more potential energy.



Energy can be transferred or stored. It can not be created or destroyed. Also kinetic energy can be transferred from one object to another. This can be seen if you are playing a racing game like Need For Speed or something and you crash. If you crash into another car that is standing still then you will transfer your kinetic energy to it slowing you down and making it move. Also if you have a head on collision the car with more kinetic energy will move forward a little after the crash while the car with less will move back.



I hope you liked it. Leave a comment if you would like and don't forget to check out my YouTube Channel!

Links:
Mario running
Mario jumping
Car crash

Monday, November 11, 2013

Changing Matter

      Hey guys its Ion_Turtle again! Today I'm talking about matter and it changing state. Matter is everything that takes up space. It can be solid, liquid, gas, or plasma. Solids are hard and are well solid. Liquids are wet like water and they flow. Gasses are commonly invisible and float around in the air.

If you read my earlier posts then you know what molecules are. Well in solids, liquids, and gasses the molecules behave differently. In solids they are tightly packed and only vibrate a little. While in a liquid they flow and roll over each other. In a gas they fly around bouncing off everything.



You might be asking, "How do they change?" Well I have the answer. Matter changes states when energy is added or removed. Think of water. Have you ever put water in the freezer and when you took it out it turned to ice? That is the liquid water change to solid ice. The freezer is cold. Because it is cold it takes away the energy in the water. The water then slows down and connects together to make a hard solid block of ice. This process is called freezing.


If you take the ice and put it in your hand. Your hand will get wet. This is because your body heat adds energy to the ice molecules making them break free from the orderly solid ice. The molecules start to flow and soon you have a puddle in you hand and probably some water on the floor. This process of the ice turning to water is called melting. Freezing and melting happen at a certain temperature. They both occur at 32 degrees Fahrenheit or 0 degrees Celsius for water. Other substances freeze and melt at different temperatures, but the melting point is always the same as the freezing point of the same substance. For example iron melts and freezes at 1510 degrees C (2750°F)


Now lets add in the gas. When you heat up water it starts to bubble. This happens because the molecules get so much energy that they just shoot out of the liquid and fly away. This is called boiling. You have probably boiled water and saw steam come out. That is the water in it's gaseous state. When in the gaseous state water is called water vapor. If you get a cold can of soda you may find that the outside is wet. You might think that the can is leaking but it is not. What is happening it the water vapor in the air is hitting the cold can and loosing energy turning it into a liquid. This is called condensation. This also happens in clouds.


There is also a special thing called sublimation. That is when something goes straight from a solid to a gas. One great example is dry ice. It is commonly used in special effects and during Halloween because the ice turns straight into an eerie whit fog. Deposition is the processes of making the dry ice. Deposition is when a gas turns straight into a liquid.


There is this thing called heat of fusion. It is the energy used to turn a solid into a liquid. It works by adding energy to the solid structure that makes the molecules break out of the tight orderly structure that they were in. There is also heat of vaporization. It is the energy used to turn a liquid into a gas. In the liquid state the molecules are still pretty tightly compacted, but they move around a lot more than in a solid. The heat of vaporization breaks them apart so the molecules shoot away from the liquid and fly into the air.



Thanks for reading. I hope you enjoyed the gifs. Leave any comments if you want. I'll reply to them. Don't forget to check out my YouTube channel. ==> Click Here! <==


Links:
states of matter
ice
ice melting
water boiling
can condensation
melting point of iron
dry ice gif
ice melting gif
boiling gif

Monday, October 21, 2013

Repellent Chemistry

      Hey guys Ion_Turtle again and today I will talk about some current news. Its still science related and really cool. Its called Repellent Chemistry! It is a new field of science and it is all about repelling water. This can be observed in lotus leaves.



      The lotus leaf repels water by being covered in oil. It also has bumps that push the water away. This also happens on a ducks feathers. They are covered in oil so that the water will come right off and not weigh it down when it tries to fly. It also keeps the duck warm when it is in the water.

      Oil isn't repelled well by anything at all. That is why oil spills are so dangerous. If a ducks feathers have too much oil they will quickly mat making it hard for the bird to keep warm and swim.

Scientists have created a tight wire mesh soaked in liquid retardant chemicals that could be used to prevent stains on clothing or to prevent harmful chemicals from coming in contact with the wearers skin.

By coating a wire mesh (left) with water-repelling polymers (close-up, right), researchers can create surfaces that can shed liquids that stain clothes (such as coffee or ketchup) or pose safety concerns (such as strong acids or blood). Credit: Pan et al., Journal of the American Chemical Society (2012)
A-Wire Mesh                                     C-Liquid Retardant Chemicals

      Michigan scientists have created a spray that sprays little fibers on any solid substance. The fibers don't pack together very tightly making tons of air bubbles. This repels other substances making them slide off. There is a product called neverwet. Here is a gif of it in use:



      Researchers at MIT have used this information to make a coating for class that keeps it from fogging.
Researchers at MIT have designed a coating that prevents a cold piece of glass from fogging up when met with warm, humid air. The technology could help designers of everything from automobile windshields to camera lenses. Credit: Courtesy of the Rubner and Cohen Groups, MIT

      Some researchers are working on putting this technology on ships. This will help with making them go faster because ships have a lot of friction when traveling through water and this will greatly reduce that friction making it need to use a lot less power to get somewhere.

      I think this would be extremely useful. I can see tons of uses for the neverwet spray in everyday things from keeping clothes dry to keeping shoes from getting muddy. The glass coating is even more useful. It will help drivers see in the rain and even might make windshield wipers obsolete.

      I hope you enjoyed learning about repellent chemistry. Comment what you thought of the post and don't forget to check out my YouTube channel (couldn't get a link sorry but I have it on earlier post and I will have it on the next)


Links:
All pictures and Information
neverwet gif

Sunday, September 29, 2013

Chemical Bonds

      Hey guys Ion_Turtle's back. Today I'm talking about chemical bonds. Chemical bonds are really cool. They make up everything around you. Here are some gifs of really cool ones.




Now to explain what happens. To understand what happens we have to revisit atome. An atom is made of protons, neutrons, and electrons. Protons (positive) and neutrons (no charge) are in a clump in the center called the nucleus. Electrons (negative) fly around the outside. They fly around in shells. each shell holds a certain amount of electrons. The first shell can hold a maximum of two. While the second can hold a maximum of eight. The electrons in the outermost shell are called valence electrons. The area where these electrons orbit isn't perfect. It is a rough sphere that is fuzzy because they move very fast. It is called the cloud.

An atom can be stable or unstable. If it is stable then it's outer shell is full. If it is unstable then it's outer shell isn't full.

A chemical bond is when two atoms combine. There are two different types of chemical bonds, covalent and ionic. A covalent bond is created when two or more atoms combine and share an electron.
An ionic bond is created when two atoms meet and one takes an electron from the other. The one that took the electron becomes negative while the other one becomes positive. If you have ever used a magnet then you know opposites attract. That means that the positive atom and the negative atom stick together. The force sticking them together is electrostatic attraction.

Thanks for reading. Please leave a comment on how well you think I did. Don't forget to check out my YouTube Channel!


Links:

Sunday, September 22, 2013

The Periodic Table of elements

Hello everyone I am Ion_Turtle and I'm back! Today I'm talking about the periodic table of elements.



      The periodic table might look menacing, but its really not. Its very simple. The periodic table is a list of all the elements in the universe. It puts elements in different places based n their properties. The number of electron shells in an atom determines its properties. (I have an earlier post all about atoms) The person who made the periodic table of elements was Dimitri Ivanovich Mendeleev. He was a Russian chemistry teacher. He also has a giant messy beard.

      If you look at the periodic table you will see a lot of squares. Each of these squares has a one or two letters in it. Those letters represent an element. If you look at the top right you will see a square with the letter "H" in it. (For an interactive table Click here! ) The "H" represents hydrogen the first element. If you look above it you will see the number one. That represents the number of protons (or electrons) in the element. Across it on the right you will see the symbol "He" (helium) with the number two above it. It has two protons. Then the next one has a three, then a four. This is because the table is made so that as you go down the rows the number of protons goes up. The average weight of each element is also on the table. It is found under the symbol.


      The table has different sections. One way of sectioning off different elements is in groups and periods. Groups are vertical columns. There are 18 of them. All the elements in a group have similar properties. This is because it shows how many electrons are in the last shell of the elements.


      As you can see this Lithium atom has one full shell with 2 electrons and another shell with just one. It is in the first group. The elements in the last group (18) have their last shell full.
      The table is also separated into periods. Periods are the horizontal rows. The period represents the number of electron shells that an element has. If you look back up at Lithium you will see that it has 2 shells. It is also in the second period or row. As you read across a period the number of electrons in the last shell increases.


The periodic table can also be separated based on the properties of the element. This is usually done with colors. The colors won't be the same on each table but the elements will be separated the same.

      All the way on the left (orange in the picture above) are the Alkali Metals. They dissolve in water. (Please note that Hydrogen is above the Alkali Metals but is not one of them) Next (yellow) is the Alkaline Earth Metals. They also dissolve in water. The biggest section (purplish) is the Transition Metals. They are strong and shiny. Followed by (bright blue) the Poor Metals. They are soft with low melting points. The Semimetals (not shown) conduct electricity only under certain conditions making them great for electronics.  Next (green) is the Nonmetals This section contains some of the elements essential to life. (Carbon and Oxygen) The Noble Gasses (Grayish blue) are next. They don't really react with anything else. The two rows that are commonly taken out and placed at the bottom are also grouped. The top row is the Lanthanoids and the row under it is the Actinoids.

Fun Fact:
Any element above 92 (uranium) is to unstable to occur in nature and has to be made in a lab.

I hope you enjoyed this blog post. Comment on anything you like or think I could have done better. Make sure to check out the cool song. Also check out my YouTube channel.



Link:
Periodic Table pic
Hydrogen symbol
Lithium atom
Mendeleev

Sunday, September 8, 2013

Compounds and Mixtures

Hello everyone! Its Ion_Turtle and today I'm talking about compounds and mixtures.

Compounds and mixtures are very different. Compounds are combined chemically, but mixture are combined physically. A compound is created when two or more atoms combine. Like water. Water has two hydrogen atoms and one oxygen. When too atoms combine they share one or more electrons. In water the oxygen atom wants 2 more electrons and each hydrogen want another one. If you look at the atom picture below you will see that there are 2 electrons where the hydrogen meets the oxygen. Those are the shared electrons.

You can see the shared electrons




Salt is also a compound. It is made of sodium (A deadly metal) and chloride (A deadly gas), but when they are combined they make table salt. Because compounds are made by a chemical reaction it is very hard to split it.

Mixtures are very different. They are blended without any chemical change. Each substance keeps its own properties. A mixture is also very easy to separate. A salad is a mixture. This is because you take lettuce, tomatoes, and croutons and combine them. The separate ingredients stay the same when you mix them. You can also easily separate them. They can be heterogeneous or homogeneous. Homogeneous mixtures are mixtures where something dissolved in a liquid. Like salt water or lemonade mix. The salt in the salt water can not be seen and it is spread evenly throughout the water. Heterogeneous mixture are like salads. They do not combine. When you look at a salad you see the individual ingredients.
 
I hope you enjoyed learning about mixtures. Comment what you thought of my blog! Check out my YouTube channel: Click here!


Links:
Tasty salad



Monday, September 2, 2013

Awesome Atoms


Hello everyone I am Ion Turtle and today I am talking about a very small topic. Atoms! Atoms are tiny. Extremely tiny and they make up everything. Literally everything! They make up your shoes, your book, a bicycle, computers, and even you. Yes you are made of atoms. They are so small that it would take 7,000,000,000,000,000,000,000,000,000 atoms to make you. That’s a lot.

The name atom came from a Greek man named Democritus. He thought that eventually you would get to the point where you can’t split it anymore. He called it atoms after the Greek word atomos that means indivisible. Later another guy named John Dalton changed the definition of an atom to the smallest thing that still contains its chemical properties. That means that if you take a carbon atom and split it then it is no longer like carbon in any way.

John Dalton
John Dalton

            Atoms are made of even smaller things. They have an inner part called the nucleus that is made of two different parts. It has protons and neutrons. Protons are positively charged and neutrons have no charge. There are particles that circle around the nucleus called electrons. They are negatively charged and balance out the positive charge of the protons. They also move near the speed of light. That’s really fast. Electrons stay in shells. Each shell has a maximum capacity of electrons. The first one can only have 2 electrons. The second has a maximum of 8. Atoms are made mostly out of empty space. So that means space is made of space.

ImageSpace Sphere

I hope you enjoyed leaning about atoms. Leave a comment on how I can improve or about what you liked.
 Also check out my YouTube channel- Click Here!




Links:
John Dalton pic
Atom pic
Space pic
My Youtube channel!