4/13/10 I’ve always wondered how exactly how our eyes work. We learned a little bit about it in science while learning about the electromagnetic spectrum and visible light. Basically our eyes have special cells in them that can detect light. There are two different types of cells that can detect light in our eyes; they are called rods and cones. The rods detect white light and the cones detect all the colors. These cells send signals to our brains and our brain processes them and forms the images that we see. 4/13/10 I’m learning about visible light in my science class. All the colors we see are just different wavelengths of light, red has the longest wavelength and violet has the shortest. All the visible colors combined make white light and when an object appears to be on color in white light, that just means that that object is simply absorbing every wavelength of light except the color that it appears to be. So if you were to hold and apple under green light it would appear black because there is no red light so all the light is being absorbed by the apple. 4/13/10 A lot of my life revolves around my music. My favorite instrument is the electric guitar which would just be a regular guitar if it didn’t use amplifiers. Amplifiers use electrical signals sent by what’s called a pickup in the guitar to create sound. These electrical signals are used to create vibrations that are made louder through small cones in the amplifier. 4/13/10 I’m sure a lot of us have asked that simple, yet, pulsing question, why is the sky blue. Well its actually not all that complicated. The sky is blue because of the angle at which the light from the sun hits the Earth’s atmosphere, most color wavelengths like red and yellow are not affected by the air, but the shorter wavelengths like blue light get absorbed by the air molecules and then radiated in all directions. This means that no matter what direction you look, some of that blue light reaches our eyes, so the sky looks blue.
3/19/10
we did a short experiment in science class yesterday. There were two beakers filled with water, one warm and one cold. The warm water had yellow food coloring in it and the cold water had blue food coloring. We placed the cold water beaker upside-down. The water mixed and turned green, but when we redid the experiment with the warm water on top and cold water on bottom, they did not mix. The reason for this is that warm always rises and cold sinks. So when the warm water was on the bottom, it started to float to the top which made it mix with the cold water to make green. But when the warm water was on the bottom, it had no more room to rise, so the two colors stayed separated.
3/9/10
I see science every time I go to a school assembly. I have notices that it is always really hot inside the gym. This is because of the heat radiation coming from everyone’s bodies. Heat is the vibration of atoms and molecules and all objects have heat energy. That is why school assemblies are part of science in everyday life.
3/2/10
Every light bulb in my house has something to do with science. The aspect of science that I will talk about is the circuitry that provides power for the light bulb. Most light bulbs are powered by an alternating current, which is a current of electrons that switches direction very quickly to avoid losing power. A direct current is a current that travels in only one direction.
2/ 25/10
We learned about electricity in science recently. One of the things we talked about was some of the ways that electricity can be created. One of the most important parts of creating electricity is the use of a generator. Weather it is hydroelectric power or a wind turbine, a generator is always used. Inside a generator is a powerful magnet that creates a magnetic field, as the turbine rotates, metal wires pass in and out of this field causing a current of electrons.
2/18/10
In the summer, my family was driving to Intiat Washington for a summer trip. On our way there we passed a dam. Just seeing the dam reminded me of learning a little bit about hydroelectric power in science class. The dam blocks off the water but it does let some flow through, and when it does the water turns a turbine to create electricity. This is kinetic energy being transformed into electrical energy.
2/11/10
My dad and I do a lot of bike riding. One of the things that we have to deal with when we ride is the wind. Even the slightest bit of wind can make it twice as hard to ride. We ride in a straight line, very close to each other in order to break the wind for whoever is in the back. This is an example of air resistance, as we push through the air it pushes back on us, making it harder to ride. Air resistance is a major part of force and motion.
2/4/10
Music is a big part of my life. In fact, I am listening to it right now and it is what made me think of what to right about. Sound is made by vibrations. That is why, when you touch a loud speaker you can feel it vibrating. Sound is in the forms of waves that are made up of small particles. The size of the wavelengths is what makes a sound a different pitch. Low sounds have large wavelengths and high pitched sounds have small wavelengths.
December 31st, 2009
During the summer I went with my uncle to see the f18 blue angels practice flight as well as their take off. They pulled this one maneuver were they were moving forward at a very slow pace with their noses pointed strait up. Watching the planes do all these different maneuvers made me think of how a plane works? There are many aspects of science I could talk about but I’ll just talk about one thing in particular. Planes get there maneuverability mostly from air resistance, it uses moving flaps to change how air resistance effects the plane, which allows the plane to turn and roll and other maneuvers.
January 7th, 2010
Every time I am in my car, all I can think about is talking about force and motion in 7th grade science. I remember talking about inertia, at one point an example was used to describe how inertia affects moving objects. the example was a person sitting in the car without a seat belt, as the car turns his body wants to keep going strait so he slide to one side of the car. The car is the unbalanced force changing his direction in this case.
January 14, 2010
During the summer I would go to the Kent swim and tennis club to swim in the pool. While I was wading through the water I thought about when about friction in science class. We learned about the three different kinds of friction, sliding friction, rolling friction, and fluid friction. Fluid friction is friction caused by a liquid or gas, like air resistance. The fluid friction caused when I waded through the water made it much harder to move then if I hadn’t been in the water
January 21st, 2010
I was making some Roman Noodles for diner yesterday and as i watched the water boil i thought of when we learned about the phase changes of matter. we talked about how molecules change states when they lose or gain energy. the thermal energy provided from the stove was what changed the molecules from their liquid state to their gas state. As the molecules gain energy, they begin to move more freely, and they spread out in the form of water vapor.
January 28th, 2010
I am the kind of guy who is really in to planes and aviation, so I guess I know a few things about planes and the science of it. A jet plane’s engines use work because of the laws of fiction, specifically, the factor of action and reaction. The engine compresses and the fumes from its fuel. After that it forces the ignited gasses out of the back of the engine with such force the reaction from the force is enough to propel the plane at several hundred miles per hour.
I’ve always wondered how exactly how our eyes work. We learned a little bit about it in science while learning about the electromagnetic spectrum and visible light. Basically our eyes have special cells in them that can detect light. There are two different types of cells that can detect light in our eyes; they are called rods and cones. The rods detect white light and the cones detect all the colors. These cells send signals to our brains and our brain processes them and forms the images that we see.
4/13/10
I’m learning about visible light in my science class. All the colors we see are just different wavelengths of light, red has the longest wavelength and violet has the shortest. All the visible colors combined make white light and when an object appears to be on color in white light, that just means that that object is simply absorbing every wavelength of light except the color that it appears to be. So if you were to hold and apple under green light it would appear black because there is no red light so all the light is being absorbed by the apple.
4/13/10
A lot of my life revolves around my music. My favorite instrument is the electric guitar which would just be a regular guitar if it didn’t use amplifiers. Amplifiers use electrical signals sent by what’s called a pickup in the guitar to create sound. These electrical signals are used to create vibrations that are made louder through small cones in the amplifier.
4/13/10
I’m sure a lot of us have asked that simple, yet, pulsing question, why is the sky blue. Well its actually not all that complicated. The sky is blue because of the angle at which the light from the sun hits the Earth’s atmosphere, most color wavelengths like red and yellow are not affected by the air, but the shorter wavelengths like blue light get absorbed by the air molecules and then radiated in all directions. This means that no matter what direction you look, some of that blue light reaches our eyes, so the sky looks blue.
3/19/10
we did a short experiment in science class yesterday. There were two beakers filled with water, one warm and one cold. The warm water had yellow food coloring in it and the cold water had blue food coloring. We placed the cold water beaker upside-down. The water mixed and turned green, but when we redid the experiment with the warm water on top and cold water on bottom, they did not mix. The reason for this is that warm always rises and cold sinks. So when the warm water was on the bottom, it started to float to the top which made it mix with the cold water to make green. But when the warm water was on the bottom, it had no more room to rise, so the two colors stayed separated.
3/9/10
I see science every time I go to a school assembly. I have notices that it is always really hot inside the gym. This is because of the heat radiation coming from everyone’s bodies. Heat is the vibration of atoms and molecules and all objects have heat energy. That is why school assemblies are part of science in everyday life.
3/2/10
Every light bulb in my house has something to do with science. The aspect of science that I will talk about is the circuitry that provides power for the light bulb. Most light bulbs are powered by an alternating current, which is a current of electrons that switches direction very quickly to avoid losing power. A direct current is a current that travels in only one direction.
2/ 25/10
We learned about electricity in science recently. One of the things we talked about was some of the ways that electricity can be created. One of the most important parts of creating electricity is the use of a generator. Weather it is hydroelectric power or a wind turbine, a generator is always used. Inside a generator is a powerful magnet that creates a magnetic field, as the turbine rotates, metal wires pass in and out of this field causing a current of electrons.
2/18/10
In the summer, my family was driving to Intiat Washington for a summer trip. On our way there we passed a dam. Just seeing the dam reminded me of learning a little bit about hydroelectric power in science class. The dam blocks off the water but it does let some flow through, and when it does the water turns a turbine to create electricity. This is kinetic energy being transformed into electrical energy.
2/11/10
My dad and I do a lot of bike riding. One of the things that we have to deal with when we ride is the wind. Even the slightest bit of wind can make it twice as hard to ride. We ride in a straight line, very close to each other in order to break the wind for whoever is in the back. This is an example of air resistance, as we push through the air it pushes back on us, making it harder to ride. Air resistance is a major part of force and motion.
2/4/10
Music is a big part of my life. In fact, I am listening to it right now and it is what made me think of what to right about. Sound is made by vibrations. That is why, when you touch a loud speaker you can feel it vibrating. Sound is in the forms of waves that are made up of small particles. The size of the wavelengths is what makes a sound a different pitch. Low sounds have large wavelengths and high pitched sounds have small wavelengths.
December 31st, 2009
During the summer I went with my uncle to see the f18 blue angels practice flight as well as their take off. They pulled this one maneuver were they were moving forward at a very slow pace with their noses pointed strait up. Watching the planes do all these different maneuvers made me think of how a plane works? There are many aspects of science I could talk about but I’ll just talk about one thing in particular. Planes get there maneuverability mostly from air resistance, it uses moving flaps to change how air resistance effects the plane, which allows the plane to turn and roll and other maneuvers.
January 7th, 2010
Every time I am in my car, all I can think about is talking about force and motion in 7th grade science. I remember talking about inertia, at one point an example was used to describe how inertia affects moving objects. the example was a person sitting in the car without a seat belt, as the car turns his body wants to keep going strait so he slide to one side of the car. The car is the unbalanced force changing his direction in this case.
January 14, 2010
During the summer I would go to the Kent swim and tennis club to swim in the pool. While I was wading through the water I thought about when about friction in science class. We learned about the three different kinds of friction, sliding friction, rolling friction, and fluid friction. Fluid friction is friction caused by a liquid or gas, like air resistance. The fluid friction caused when I waded through the water made it much harder to move then if I hadn’t been in the water
January 21st, 2010
I was making some Roman Noodles for diner yesterday and as i watched the water boil i thought of when we learned about the phase changes of matter. we talked about how molecules change states when they lose or gain energy. the thermal energy provided from the stove was what changed the molecules from their liquid state to their gas state. As the molecules gain energy, they begin to move more freely, and they spread out in the form of water vapor.
January 28th, 2010
I am the kind of guy who is really in to planes and aviation, so I guess I know a few things about planes and the science of it. A jet plane’s engines use work because of the laws of fiction, specifically, the factor of action and reaction. The engine compresses and the fumes from its fuel. After that it forces the ignited gasses out of the back of the engine with such force the reaction from the force is enough to propel the plane at several hundred miles per hour.