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Tuesday, December 17, 2013

Isaac Newton

Hey guys i'm back with a new topic. Today i'll be talking about Isaac Newton and about his many discoveries and accomplishments. Isaac Newton was born on Christmas Day, 1642, at Woolsthorpe Manor in England. On some calendars, you might notice Isaac Newton's birthday to be on January 4th, 1643. That's because two different calendars were used at that time.
Isaac Newton was born without a father, because his father died three months before Isaac was born. Isaac's mother left him with his grandparents to deal with so she could go marry some old guy. When Isaac was 19 years old, his mother came back and asked him to take over Woolsthorpe and become a farmer, but Isaac's uncle helped convince Isaac's mother to let him attend Cambridge University. Isaac took a three day journey to Cambridge University, but when he got there he knew that the three day walk was worth it. We all know how Isaac Newton discovered the Laws of Motion, hopefully.
One of the laws of motion is that an object in motion tends to stay in motion.
 
 
Another one of the Laws of motion is that the sum of the forces on an object is equal to the total mass of that object. The last law of motion is when one body exerts a force onto a second body.
 
 
That's all for today people.

Sunday, December 8, 2013

Heat Transfer

Hey guys i'm back with a new topic. Today i'll be talking about heat and the details of what heat is and how it helps us all during our daily lives. First off, heat is the transfer of thermal energy from one object to another when the objects are at different temperatures. The amount of thermal energy that is transferred when two objects are brought into contact depends on the difference in temperature between the objects. Heat is important to us and our lives because it keeps us warm so we are able to live.
Heat is transferred in three ways. They are radiation, conduction, and convection. Radiation is when energy is transferred by electromagnetic waves. These waves carry energy through empty space, and also through matter. The transfer of thermal energy by radiation can occur in solids, liquids, and gases.
Conduction is when the particles in a material collide with other close particles. If you were to hold an ice cube in your hand, the faster-moving molecules in your hand bounce against the slower-moving molecules in the ice. The heat from your hand transfers to the colder ice, the molecules in the ice begin to move faster. As a result, the ice becomes warmer and its temperature rises. Finally, there is convection.
Convection is when thermal energy by the movement of atoms or molecules is transferred from one part of a material to another. When you heat a pot of water on a stove, thermal energy can be transferred through the water. Convection occurs in gases and liquids, not in solids.

That's all for today guys see you next time!

Friday, December 6, 2013

Lemons Sharks

Hey guys i'm back with a new topic. Today i'll be talking about lemon shark reproduction. I know it might seem a little weird but trust me it's normal. Reasearchers say that they have found the first direct evidence that female lemon sharks return to where they were born to breed.sharks
Even though lemon sharks are highly migratory, female lemon sharks prefer to go to where they were born themselves to breed. The researchers also stated that this should mean that fishing in specific places should be restricted. Not only has it been seen in lemon sharks, but it has also been seen in salmon and also sea turtles.
That's all for today guys see you next time.

Wednesday, November 13, 2013

Energy

Hey people, today i'll be talking about energy and the many types of energy. First, energy is what is used to make electricity and it's also what you are using right now. There are two types of energy, there is kinetic energy and potential energy. Kinetic energy is when something is in motion. Mass and speed play a big part in kinetic energy.
The other type of energy is Potential energy. Potential energy is when something is having the potential of being put into motion. An example for Kinetic energy is a ball being kicked and is put into motion. An example for Potential energy is a boulder sitting on the point of a cliff and is having a potential to fall off of the cliff point. Mass for Kinetic energy has a big part because the bigger it is, also helps with the speed of the object. Mass has the same effect with Potential energy.
Kinetic energy depends on speed because it determines on how fast the object goes. An example for Kinetic energy transferring from one object to another is a bowling ball being put into motion and hitting a bowling pin and the bowling pin being put into motion by the bowling ball, which making the pin hit another pin and then another pin and so forth, creating the so called domino effect.
That's all for today people see you next time!

Monday, November 11, 2013

States of Matter


 Hey guys, today i'll be talking about states of matter, but first you have to know what matter is. Matter is anything that has mass and takes up space. The three most commonly known states of matter are solids, liquids, and gases. Except those aren't the only states of matter, there is another called plasma. There are many different types of plasma. Some examples are: lightning, fire, and neon. The most common plasma on Earth is lightning.

Matter can also change to different states because of temperature and also because of pressure. When matter changes states it only changes physically, not chemically. An example is ice going from a solid to water, a liquid. Even though its form changed, its physical properties were the only thing that changed with it. Matter's chemical properties never change, they always stay the same.

Also, everything has their own melting and boiling points. A melting point is which a solid becomes a liquid. An example of a melting point is ice. Another part that is included in the states of matter is something called heat of fusion. Heat of fusion is the energy required to change a substance like a solid to a liquid, without changing its temperature. This energy breaks down the solid bonds, but it leaves a significant amount of energy associated with the molecular forces of the liquid state.
That's all for today people see you next week!  
 
 
 
 

Sunday, October 20, 2013

Oreos: Are they as addictive as cocaine

Hey guys, i'm back with another topic that I thought was very interesting. Today i'll be talking about oreos and if they are as addictive as cocaine. Studies show that rats treat oreos as addictive as cocaine. scientists at Connecticut College conducted an experiment on rats using a maze with rice cakes at one end and oreos on the other. The rats were observed on both sides of the maze.

The experiment results were compared with previous tests done on rats that were given shots of morphine or cocaine on one side of the maze and saline on the other. The study showed that the rats the weren't given shots of morphine, cocaine, or saline had spent as much time on the side with oreos as the rats that were given shots of morphine, cocaine, or saline did. Also, according to the studies, rats liked to eat the filling of the oreo first, just like many humans do. The studies also showed that oreos activated more neurons than the morphine or cocaine. So when you have a craving for oreos, blame it on your brain chemistry.

That's all for today guys, see you next week. 

Sunday, September 29, 2013

Chemical Reactions

Hey people i'm back and i'll be talking to you about chemical reactions. Did you know that chemical reactions happen around us all the time. A chemical reaction is even happening right now while you're reading this. Anyways, lets get back to what I was saying. The atom is a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons. The atomic nucleus also contains a mix of positively charged protons and electrically neutral neutrons.

The nucleus is what is in the center of an atom. Shells are what electrons are on that surround the nucleus. Clouds are what happens when electrons spin around really fast. Now i'll be telling you about how many electrons can each shell hold. The first shell that is closest to the nucleus can hold two electrons. The second shell can hold eight, then the third can hold sixteen, then the fourth can hold thirty-two. Valence electrons are the electrons that are on the outermost shell.

Now i'll tell you the difference between when an atom is unstable and when an atom is stable. An atom that has a full shell is called stable. An atom the doesn't have a full shell is called unstable.


That's all for today people see you next week.

Wednesday, September 18, 2013

The Periodic Table

Hey guys i'm back and today i'll be talking about the periodic table of elements. You're probally wondering who made the periodic table and why. Well, the person who made was a scientist by the name of Dmitri Mendeleev, and he made the periodic table for elements, but he left spaces knowing some elements would be discovered after he died. The Periodic Table is a list of all the chemical elements that occur in the universe. It also categorizes elements according to the property of their atoms.Atoms are the smallest units of an element. They are made up of a nucleus composed of protons and neutrons and a number of electrons orbiting in different shells, or orbitals.







It's the numbers of protons, neutrons, and electrons in an element's atoms that determine its properties. The configurtion of these three particles is the only thing that makes one element different from another.

The modern periodic table of elements organizes elements so that it's easier to see how elements relate to each other. First you need to know how the elements are listed on the periodic table. The elements on the periodic table are listed by their atomic number, or number of protons in their atomic nuclei.






That's all for today people I might be blogging next week, PEACE.




Thursday, September 5, 2013

Compounds and Mixtures

Heeeeeey i'm baaaack, and I have something else to teach you peeps about. Today i'll be talking about Compounds and Mixtures, and who thinks they know that compounds and mixtures can't get confused between each other. For some people that's true but for others it might not be that easy for them to not get confused between them, and trust I do too sometimes. Anyways, back to what I was saying, a compound is when a chemical change takes place, cool right, yeah not always. Sometimes those chemical reactions can harm the planet and they can also harm you.
Mixtures are when two or more elements, or compounds, are blended without combining chemically and ta-da you have a mixture. Oh and guess what else is cool, each substance in a mixture keeps its own properties. Mixtures can only be seperated by physical or mechanical means. An example of an homogenous mixture is a bottle of salt and salt crystals that have been dissolved in water.

Another example is trail mix, which has a mixture of many diferent things. Trail mix is a heterogeneous mixture and an example of a homogenous mixture is food coloring.
 

Wednesday, August 28, 2013

Atoms&Molecules

The Atoms Family

Years ago there were around 2,400 elements. There was a Greek guy named Democritus argued everything in the world was made up of particles so small that they couldn't be cut in half. Democritus called these tiny things Atoms which came from the Greek word Atomos which means indivisible.
Somewhere in the 1800's another guy named John Dalton refined the idea with his theory that atoms are the smallest particle of an element that retain its chemical properties. That means if you were to break apart an atom of an element such as carbon, its not carbon anymore.
Atoms are made up of something smaller then itself. Those things are called Protons, Neutrons, and Electrons. The atom's center, or Nucleus, is a cluster of protons and neutrons. Protons have a positive electrical charge, and neutrons have no electrical charge.
The Nucleus is held together by something called the Strong Force (as in the picture below).

   The inside of a carbon atom is made up of 6 Protons and 6 Neutrons. Electrons surrounds the outside of an atom's nucleus going as fast as the speed of light. If we were able to see the electrons it would look like a fuzzy cloud.