Gravity is a big part of our lives. Without it we would all float away into space and die. Everything on Earth and in space has gravity, even us as human beings. That means that while the Earth’s gravity is pulling us to the Earth, our gravity is pulling the Earth towards us but we are so small that we don’t feel it or realize because the bigger the object is, the greater the graviton force of the object, or vice versa for the size of the object. No one really knows for sure on what causes gravity but we do know that gravity is out there.
WEEK: May 3rd – 7th, 2010: The color spectrum
The color spectrum is what makes up all the colors we see. The colors in the color spectrum can be remembered with the acronym of ROY G. BIV. ROY stands for Red, Orange, and Yellow. G. stands for Green. Lastly, BIV stands for Blue, Indigo, and Violet. You will recognize those colors when you look at a rainbow because the colors of the rainbow are what make up the color spectrum.
WEEK: April 16th – 30th, 2010: The electromagnetic spectrum
The electromagnetic spectrum is the different wave lengths and kind of electromagnetic radiations. The longest one, the radio wave, has a wavelength varying from 3 to 300 meters long. The next longest is microwaves, they are have a wavelength varying from 0.3 to 30 centimeters long. The third longest is inferred which lies between microwaves and visible light. Then it is visible light, ultra violet, x-ray, and gamma rays.
WEEK: April 19th – 23nd, 2010: Our solar system
Space in general is infinite. There are galaxies, universes, and solar system. Our Solar System consists of one star, planets, dwarf planets, asteroids, meteors, meteoroids, meteorites, and comets. The one star in our Solar System is called the Sun. The Sun is very small compared to other stars but is very big compared to the planets in the Solar System. The Sun is in the center of our Solar System and then it is the planets. The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The dwarf planets are Ceres; Pluto, which was thought of as a planet for quite some time; Haumea, Makemake, and Eris.
WEEK: April 12th – 16th, 2010: A bullet, gravity, and the solar system
I have been told that we were going to be talking about the solar system and space in the next unit and I am very excited about that. I stunk at drawing the solar system because I wasn’t prepared for the class and did not have a pencil and because I didn’t memorize the different planets but that is what school is for. One thing I do know about space though is that there is no gravity unless you are on a planet or moon which I think is very cool but also scary at the same time. One question that I have for the space and solar system unit would be, if you shot a bullet out of a gun in space, would it go on forever? I was wondering this because there is no gravity to slow down the bullet until it comes to a complete stop in space. I think the a flying bullet has a lot to do with science because of the gravity pulling down on the bullet causing friction on the bullet and then heating up the bullet because of friction.
WEEK: April 5th – 9th, 2010: Melting
As most people know, there are three key elements (four including plasma). When the extremely slow moving molecules in a solid are bumped and shoved by other molecules, the molecules in the solid start to move around more until the solid is a liquid, it is called melting. An example of that would be an ice cube in the sun or a burning candle. The molecules in the fire are moving around much more because of the energy in the heat. The molecules from the fire hit the molecules in the candle and the fire transfers the energy from the fire to the candle ubtill all of the candle has melted into a liquid.
WEEK: March 29th – April 2nd 2010: Heat
Most of the time when you hear the word heat, you think of fire or the Miami Heat but that is not what I am suppose to blog about. Heat is the reaction from when molecules are moving around. The online definition of Heat is internal energy that is transferred to a physical system from outside the system because of a difference in temperature and does not result in work done by the system on its surroundings. Absorption of energy by a system as heat takes the form of increased kinetic energy of its molecules, thus resulting in an increase in temperature of the system. Heat is transferred from one system to another in the direction of higher to lower temperature.Heat is also energy and that is why we get our energy from the sun.
WEEK: March 22nd – 26th 2010: conductors and insulators
To touch on the subject a bit more, I will talk about conductors and insulators. The web definition of conductor is a material or an object that conducts heat, electricity, light, or sound. Electrical conductors contain electric charges (usually electrons) that are relatively free to move through the material; a voltage applied across the conductor therefore creates an electric current. Insulators (electrical nonconductors) contain no charges that move when subject to a voltage. My kid friendly definition of conductor is material that electricity passes through to go from one place to another. The web definition of insulator is a material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators.
WEEK: March 15th – 19th, 2010: electric currents
Like humans, electricity is always moving, also called electric currents. The definition of electric current would be: the time rate of flow of electric charge, in the direction that a positive moving charge would take and having magnitude equal to the quantity of charge per unit time: measured in amperes or amps. There are two types of electrical objects. There are insulators and conductors. There was a German physicist by the name of Thomas Seebeck (1770-1831) who was the discoverer of the "Seebeck effect". He twisted two wires made of different metals and heated a junction where the two wires met. He produced a small current. The current is the result of a flow of heat from the hot to the cold junction. This is called thermoelectricity. Thermo is a Greek word meaning heat. He figured out that he could use conductors, an object that electricity can travel through, to transport electricity from one place to another to power electronics.
WEEK: March 8th – 12th, 2010: history of electricity.
We have had many great men and women of science in the history of America in my opinion. Three for an example is Benjamin Franklin, Thomas Edison, and Albert Einstein all of which were involved in electricity. I did an online research to find the people who were in charge of our electricity today. Benjamin Franklin (1706 – 1790) did and experiment that kite experiment demonstrated that lightning is electricity. He was the first to use the terms positive and negative charge. He flied a kite high in the sky during a thunder storm with a key in the middle and discovered that lightning was electricity. Thomas Edison (1847-1931) was one of the most well known inventors of all time. Self-educated, Edison was interested in chemistry and electronics. During his life, Edison received only three months of formal schooling, and was dismissed from school as being retarded, though in fact a childhood attack of scarlet fever had left him partially deaf. In 1879, using lower current electricity, a small carbonized filament, and an improved vacuum inside the globe, he was able to produce a reliable, long-lasting source of light. And last but not least, Albert Einstein (1879-1955). Einstein's formula proved that one gram of mass can be converted into a torrential amount of energy. To do this, the activity of the atoms has to occur in the nucleus. E = energy, M = mass, and C = the speed of light which is 186,000 miles per second. When you square 186,000 you can see it would only take a small amount of mass to produce a huge amount of energy.
WEEK: March 1st – 5th, 2010: Electricity
electromagnetic force, creating electric fields, and when they are in motion, magnetic fields. The electric fields tend to result in a repulsive force between particles with charges of the same sign, and an attractive force between charges of opposite sign. The electron is defined to have an electric charge of -1; the protons in an atomic nucleus have charge of +1, and the neutrons have charge of 0.
WEEK: February 22nd – 26th, 2010: Energy
Energy is all around us in our world. Without energy our world would be lifeless. The definition if energy is: The capacity or power to do work, such as the capacity to move an object (of a given mass) by the application of force. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another. It is measured by the amount of work done, usually in joules or watts. The source of all our energy comes from the sun.
WEEK: February 15th – 19th, 2010: Simple Machines
Simple machines are all around us in our world. In the last blog I explained the definition of the different types of machines and in this blog I will explain the definition of all the simple machines. Lever:a rigid bar that pivots about one point and that is used to move an object at a second point by a force applied at a third. Wheel and axle: A simple machine consisting of an axle to which a wheel is fastened so that torque applied to the wheel winds a rope or chain onto the axle, yielding a mechanical advantage equal to the ratio of the diameter of the wheel to that of the axle. Pulley: A machine consisting of a wheel over which a pulled rope or chain runs to change the direction of the pull used for lifting a load. Combinations of two or more pulleys working together reduce the force needed to lift a load. Screw: a threaded cylindrical pin or rod with a head at one end, engaging a threaded hole and used either as a fastener or as a simple machine for applying power, as in a clamp, jack, etc. Wedge: a piece of hard material with two principal faces meeting in a sharply acute angle, for raising, holding, or splitting objects by applying a pounding or driving force, as from a hammer. Inclined plane: one of the simple machines, a plane surface inclined to the horizon, or forming with a horizontal plane any angle but a right angle.
WEEK: February 8th – 12th, 2010: Simple and Compound Machines
In the last week and a half we have been talking about machines, both simple and compound. My definition of a machine is an object that helps you use less force or help you in your life. My definition of a simple machine is a machine such as an inclined plane, pulley, wheel and axle, lever, wedge and screw. My definition of compound machines are multiple simple machines put together. I searched up online to see what dictionary.com definition was and it’s machine: a device that transmits or modifies force or motion. Simple machine:any of six or more elementary mechanisms, as the lever, wheel and axle, pulley, screw, wedge, and inclined plane. Compound machine: a combination of simple machines.
WEEK: February 1st – 5th, 2010: Newton's first law of motion on cars
A driving car uses Newton's first law of motion. When a car is parked, it is at rest. That car will stay at rest until it is forced upon by an outside force. The outside force is the acceleration in the car caused by the engine of the car. The engine of the car is powered by the energy release from the gasoline inside the engine. The power is transmitted to the drive wheels which spin the wheels making the car move forward. When a car comes up to a stop light, the car stops because of several reasons. One of the reasons is because of the gravity weighing down on the car. The other reason of why it stops is because of the friction slowing down a vehicle. One of the frictions that stop the car is the friction of the wheels rubbing against the ground. The other friction is the brakes slowing down the tires. And once it is stopped, it is yet again, at rest.
WEEK: January 25th – 29th, 2010: The movement of energy in bowling
WEEK: January 18th – 22nd, 2010: The water cycle
WEEK: January 11th – 15th, 2010: movement of energy to use a laptop
In our world, we rely a lot on electronics. To use electronics, we must power them with electricity. For my example I am going to use a laptop. A laptop needs a lot of electricity just to keep it on. A laptop gets its energy from the battery. A battery is a container that’s holds electricity without letting in escape. When a batter is empty, it is filled using a charger. A charger transfers electricity from a wall outlet into the battery. The electricity from the wall outlet leads to the building electricity room or generator. The building generator leads to the town electricity plant which leads to whatever the town uses to generate electricity.
WEEK: January 4th – 8th, 2010: the difference between chemical and physical mixture
In our world, we use a lot of mixtures. Not all mixtures are the same though. The two types of mixtures are chemical and physical mixture. Physical mixture is a mixture that can be separated where as a chemical mixture is cannot be separated. An example of physical mixture would be a bowl of cereal because you can separate the mixture with a strainer. An example of a chemical mixture would be like putting objects in lava, the objects would melt into the lava so you can’t separate it.
WEEK: December 28th, 2009 – January 1st, 2010: how a match is lit
A match is a small, thin stick that you can us to make fire. Fire is a chemical reaction caused by heat, fuel, oxygen. On a box of matches is a striker. When you slide the head of the match across the striker, the striker creates more friction than it would normally make causing heat. The fuel in the match is in the head of the match, the fuel is heat, fuel, oxygen) is complete so it creates fire.
All Definitions From http://dictionary.reference.com/
Gravity is a big part of our lives. Without it we would all float away into space and die. Everything on Earth and in space has gravity, even us as human beings. That means that while the Earth’s gravity is pulling us to the Earth, our gravity is pulling the Earth towards us but we are so small that we don’t feel it or realize because the bigger the object is, the greater the graviton force of the object, or vice versa for the size of the object. No one really knows for sure on what causes gravity but we do know that gravity is out there.
WEEK: May 3rd – 7th, 2010: The color spectrum
The color spectrum is what makes up all the colors we see. The colors in the color spectrum can be remembered with the acronym of ROY G. BIV. ROY stands for Red, Orange, and Yellow. G. stands for Green. Lastly, BIV stands for Blue, Indigo, and Violet. You will recognize those colors when you look at a rainbow because the colors of the rainbow are what make up the color spectrum.
WEEK: April 16th – 30th, 2010: The electromagnetic spectrum
The electromagnetic spectrum is the different wave lengths and kind of electromagnetic radiations. The longest one, the radio wave, has a wavelength varying from 3 to 300 meters long. The next longest is microwaves, they are have a wavelength varying from 0.3 to 30 centimeters long. The third longest is inferred which lies between microwaves and visible light. Then it is visible light, ultra violet, x-ray, and gamma rays.
WEEK: April 19th – 23nd, 2010: Our solar system
Space in general is infinite. There are galaxies, universes, and solar system. Our Solar System consists of one star, planets, dwarf planets, asteroids, meteors, meteoroids, meteorites, and comets. The one star in our Solar System is called the Sun. The Sun is very small compared to other stars but is very big compared to the planets in the Solar System. The Sun is in the center of our Solar System and then it is the planets. The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The dwarf planets are Ceres; Pluto, which was thought of as a planet for quite some time; Haumea, Makemake, and Eris.
WEEK: April 12th – 16th, 2010: A bullet, gravity, and the solar system
I have been told that we were going to be talking about the solar system and space in the next unit and I am very excited about that. I stunk at drawing the solar system because I wasn’t prepared for the class and did not have a pencil and because I didn’t memorize the different planets but that is what school is for. One thing I do know about space though is that there is no gravity unless you are on a planet or moon which I think is very cool but also scary at the same time. One question that I have for the space and solar system unit would be, if you shot a bullet out of a gun in space, would it go on forever? I was wondering this because there is no gravity to slow down the bullet until it comes to a complete stop in space. I think the a flying bullet has a lot to do with science because of the gravity pulling down on the bullet causing friction on the bullet and then heating up the bullet because of friction.
WEEK: April 5th – 9th, 2010: Melting
As most people know, there are three key elements (four including plasma). When the extremely slow moving molecules in a solid are bumped and shoved by other molecules, the molecules in the solid start to move around more until the solid is a liquid, it is called melting. An example of that would be an ice cube in the sun or a burning candle. The molecules in the fire are moving around much more because of the energy in the heat. The molecules from the fire hit the molecules in the candle and the fire transfers the energy from the fire to the candle ubtill all of the candle has melted into a liquid.
WEEK: March 29th – April 2nd 2010: Heat
Most of the time when you hear the word heat, you think of fire or the Miami Heat but that is not what I am suppose to blog about. Heat is the reaction from when molecules are moving around. The online definition of Heat is internal energy that is transferred to a physical system from outside the system because of a difference in temperature and does not result in work done by the system on its surroundings. Absorption of energy by a system as heat takes the form of increased kinetic energy of its molecules, thus resulting in an increase in temperature of the system. Heat is transferred from one system to another in the direction of higher to lower temperature. Heat is also energy and that is why we get our energy from the sun.
WEEK: March 22nd – 26th 2010: conductors and insulators
To touch on the subject a bit more, I will talk about conductors and insulators. The web definition of conductor is a material or an object that conducts heat, electricity, light, or sound. Electrical conductors contain electric charges (usually electrons) that are relatively free to move through the material; a voltage applied across the conductor therefore creates an electric current. Insulators (electrical nonconductors) contain no charges that move when subject to a voltage. My kid friendly definition of conductor is material that electricity passes through to go from one place to another. The web definition of insulator is a material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators.
WEEK: March 15th – 19th, 2010: electric currents
Like humans, electricity is always moving, also called electric currents. The definition of electric current would be: the time rate of flow of electric charge, in the direction that a positive moving charge would take and having magnitude equal to the quantity of charge per unit time: measured in amperes or amps. There are two types of electrical objects. There are insulators and conductors. There was a German physicist by the name of Thomas Seebeck (1770-1831) who was the discoverer of the "Seebeck effect". He twisted two wires made of different metals and heated a junction where the two wires met. He produced a small current. The current is the result of a flow of heat from the hot to the cold junction. This is called thermoelectricity. Thermo is a Greek word meaning heat. He figured out that he could use conductors, an object that electricity can travel through, to transport electricity from one place to another to power electronics.
WEEK: March 8th – 12th, 2010: history of electricity.
We have had many great men and women of science in the history of America in my opinion. Three for an example is Benjamin Franklin, Thomas Edison, and Albert Einstein all of which were involved in electricity. I did an online research to find the people who were in charge of our electricity today. Benjamin Franklin (1706 – 1790) did and experiment that kite experiment demonstrated that lightning is electricity. He was the first to use the terms positive and negative charge. He flied a kite high in the sky during a thunder storm with a key in the middle and discovered that lightning was electricity. Thomas Edison (1847-1931) was one of the most well known inventors of all time. Self-educated, Edison was interested in chemistry and electronics. During his life, Edison received only three months of formal schooling, and was dismissed from school as being retarded, though in fact a childhood attack of scarlet fever had left him partially deaf. In 1879, using lower current electricity, a small carbonized filament, and an improved vacuum inside the globe, he was able to produce a reliable, long-lasting source of light. And last but not least, Albert Einstein (1879-1955). Einstein's formula proved that one gram of mass can be converted into a torrential amount of energy. To do this, the activity of the atoms has to occur in the nucleus. E = energy, M = mass, and C = the speed of light which is 186,000 miles per second. When you square 186,000 you can see it would only take a small amount of mass to produce a huge amount of energy.
WEEK: March 1st – 5th, 2010: Electricity
electromagnetic force, creating electric fields, and when they are in motion, magnetic fields. The electric fields tend to result in a repulsive force between particles with charges of the same sign, and an attractive force between charges of opposite sign. The electron is defined to have an electric charge of -1; the protons in an atomic nucleus have charge of +1, and the neutrons have charge of 0.
WEEK: February 22nd – 26th, 2010: Energy
Energy is all around us in our world. Without energy our world would be lifeless. The definition if energy is: The capacity or power to do work, such as the capacity to move an object (of a given mass) by the application of force. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another. It is measured by the amount of work done, usually in joules or watts. The source of all our energy comes from the sun.
WEEK: February 15th – 19th, 2010: Simple Machines
Simple machines are all around us in our world. In the last blog I explained the definition of the different types of machines and in this blog I will explain the definition of all the simple machines. Lever: a rigid bar that pivots about one point and that is used to move an object at a second point by a force applied at a third. Wheel and axle: A simple machine consisting of an axle to which a wheel is fastened so that torque applied to the wheel winds a rope or chain onto the axle, yielding a mechanical advantage equal to the ratio of the diameter of the wheel to that of the axle. Pulley: A machine consisting of a wheel over which a pulled rope or chain runs to change the direction of the pull used for lifting a load. Combinations of two or more pulleys working together reduce the force needed to lift a load. Screw: a threaded cylindrical pin or rod with a head at one end, engaging a threaded hole and used either as a fastener or as a simple machine for applying power, as in a clamp, jack, etc. Wedge: a piece of hard material with two principal faces meeting in a sharply acute angle, for raising, holding, or splitting objects by applying a pounding or driving force, as from a hammer. Inclined plane: one of the simple machines, a plane surface inclined to the horizon, or forming with a horizontal plane any angle but a right angle.
WEEK: February 8th – 12th, 2010: Simple and Compound Machines
In the last week and a half we have been talking about machines, both simple and compound. My definition of a machine is an object that helps you use less force or help you in your life. My definition of a simple machine is a machine such as an inclined plane, pulley, wheel and axle, lever, wedge and screw. My definition of compound machines are multiple simple machines put together. I searched up online to see what dictionary.com definition was and it’s machine: a device that transmits or modifies force or motion. Simple machine: any of six or more elementary mechanisms, as the lever, wheel and axle, pulley, screw, wedge, and inclined plane. Compound machine: a combination of simple machines.
WEEK: February 1st – 5th, 2010: Newton's first law of motion on cars
A driving car uses Newton's first law of motion. When a car is parked, it is at rest. That car will stay at rest until it is forced upon by an outside force. The outside force is the acceleration in the car caused by the engine of the car. The engine of the car is powered by the energy release from the gasoline inside the engine. The power is transmitted to the drive wheels which spin the wheels making the car move forward. When a car comes up to a stop light, the car stops because of several reasons. One of the reasons is because of the gravity weighing down on the car. The other reason of why it stops is because of the friction slowing down a vehicle. One of the frictions that stop the car is the friction of the wheels rubbing against the ground. The other friction is the brakes slowing down the tires. And once it is stopped, it is yet again, at rest.
WEEK: January 25th – 29th, 2010: The movement of energy in bowling
WEEK: January 18th – 22nd, 2010: The water cycle
WEEK: January 11th – 15th, 2010: movement of energy to use a laptop
In our world, we rely a lot on electronics. To use electronics, we must power them with electricity. For my example I am going to use a laptop. A laptop needs a lot of electricity just to keep it on. A laptop gets its energy from the battery. A battery is a container that’s holds electricity without letting in escape. When a batter is empty, it is filled using a charger. A charger transfers electricity from a wall outlet into the battery. The electricity from the wall outlet leads to the building electricity room or generator. The building generator leads to the town electricity plant which leads to whatever the town uses to generate electricity.
WEEK: January 4th – 8th, 2010: the difference between chemical and physical mixture
In our world, we use a lot of mixtures. Not all mixtures are the same though. The two types of mixtures are chemical and physical mixture. Physical mixture is a mixture that can be separated where as a chemical mixture is cannot be separated. An example of physical mixture would be a bowl of cereal because you can separate the mixture with a strainer. An example of a chemical mixture would be like putting objects in lava, the objects would melt into the lava so you can’t separate it.
WEEK: December 28th, 2009 – January 1st, 2010: how a match is lit
A match is a small, thin stick that you can us to make fire. Fire is a chemical reaction caused by heat, fuel, oxygen. On a box of matches is a striker. When you slide the head of the match across the striker, the striker creates more friction than it would normally make causing heat. The fuel in the match is in the head of the match, the fuel is heat, fuel, oxygen) is complete so it creates fire.
All Definitions From http://dictionary.reference.com/