Week 1
An example of science in the real world is a train coming to a slow stop at a railroad station. The train can not rely souly on its breaks to slow it down; the slowing down and stopping of a train also relies on a force called friction. In this case, friction helps to slow down the train, and eventually stop it.
Week 2
An example of friction in the real world is when a metal part of a large rig or truck has detached and scrapes along the road. When this happens, the friction and heat being generated between the metal and the road causes sparks to fly. The faster the object is moving over the road, and the more friction that is generated, the larger the sparks will become.
Week 3
An example of real world science is a ball being thrown into the air and falling back down. Potential energy is being used as the person throwing the ball moves his arm back to throw the ball. Kinetic energy is used as the ball is thrown upward. Gravity comes into effect as the ball falls towards the ground.
Week 4
The swaying of a pendulum on a clock is an example of potential and kinetic energy. Potential energy is being stored as the pendulum reaches the top. Potential energy is being transfered into kinetic energy as the pendulum goes back down. Kinetic energy reaches its highest point at the bottom, before the pendulum starts back up. As it starts back up, kinetic energy is lost, and potential energy is gained again.
Week 5
A basketball being shot is another example of potential and kinetic energy. When a basket ball is shot, the potential energy being used to shoot the ball is transfered into kinetic as the ball is shot into the air. As it reaches its highest peak, potential energy is stored up for a very short amount of time. As gravity pulls the ball towards the ground, it gains kinetic energy.
Week 6
A paper floating to the ground is an example of gravity and mass. It floats to the ground slower than a baseball, because it has less mass. Therefore, it floats on the air, while a baseball will just fall to the ground.
Week 7
One very obvious compound machine that we use in our lives is a bike. A bike uses three simple machines; a pulley, gears, and a wheel and axle. The gears turn the pulley and rotate the bike chain around it. The rotation of the chain spins the wheel and axle, allowing the bike to move forward.
Week 8
A grandfather clock is a complex compound machine. It uses gears, levers, and pulleys. The gears inside the clock rotate the hands (levers) around the clock face. The pendulum, also a lever, is controlled by the gears as well. The clock weights are lifted up and lowered down by a pulley.
Week 9
Nearly every object that we use on a daily basis is either a simple or compound machine. One of them is a bathtub. The water faucet can be either a wheel and axle or a lever. The base of the tub is slightly slanted so that the water will flow down towards the drain, therefore, it is an inclined plane.
Week 10
When your open a book, you are using a second class lever. With a second class lever, the fulcrum is at the other end of the where the load is. With a book, the side you are opening is the load, and the seal of the book is the fulcrum.
Week 11
A sinking ship is a lever. For example the bow going down under the water is the load. The water line is the fulcrum, and the stern is the other side of the lever being lifted out of the water.
Week 12
The strumming of a guitar is an example of sound waves. When the largest string is plucked, low frequency sound waves are created, and when the smallest string is plucked, high frequency sound waves are created. These waves are what generate the sound that you here. If a string is tightened, the pitch will become higher, and if it is losened, the pitch will become lower.
Week 13
A spot light is an example of non-diffraction. Diffraction is what causes waves to spread out instead of heading in a straight line. With a spot light, diffraction still comes into play, but it is reduced.
Week 14
A harmonica is an example of sound waves. When a harmonica is played, the air you breath into vibrates the metal plates, each a different length. The longest has the lowest pitch, and the shortest has the highest.
Week 15
An example of inertia is a car breaking hard. As the car stops, you lurch forward for a moment. This is because inertia is continuing to pull you forward in the direction that the car is going, even though the car has stopped.
Week 16
A slinky is an example of a wave. When a slinky is tapped, you notice that the vibrations of the metal are passed down throught the slinky in a wave, or chain reaction.
Week 17
A Walky-Talky is a machine that transmits radio waves into sound energy. When you push the "talk" button, you are sending radio waves to the machine on the other end. The radio waves carry the sound of your voice, and are transmitted into sound energy by the other machine.
Week 18
A strummed rubber band is an example of sound waves. When a rubber band is stretched loosly or far apart, it makes a low sound. When a rubber band is pulled tightly, it makes a higher sound. The difference in pitch is due to different intensities of vibrations.
Week 19
Our seasons are caused by the tilting of earth. As the earth tilts back on it's axis, the southern hemisphere is tilted towards the sun, meaning that they are in summer, and we are in winter. As the earth tilts forward, the northern hemisphere is in summer, and the southern is in winter.
Week 20
The farther a baseball bat is pulled back before making contact with a baseball, the farther the baseball will go. This is because more force (kinetic energy) is being applied to the baseball when the bat is swung back.
Week 21
A bike is a compound machine. It has gears, inclined planes, and wheels.
Week 22
When a pitcher winds up and throws the ball, the ball goes faster because he is applying more force to the ball, there fore it goes faster when he realises it. If he did not wind up, the ball would go much slower.
An example of science in the real world is a train coming to a slow stop at a railroad station. The train can not rely souly on its breaks to slow it down; the slowing down and stopping of a train also relies on a force called friction. In this case, friction helps to slow down the train, and eventually stop it.
Week 2
An example of friction in the real world is when a metal part of a large rig or truck has detached and scrapes along the road. When this happens, the friction and heat being generated between the metal and the road causes sparks to fly. The faster the object is moving over the road, and the more friction that is generated, the larger the sparks will become.
Week 3
An example of real world science is a ball being thrown into the air and falling back down. Potential energy is being used as the person throwing the ball moves his arm back to throw the ball. Kinetic energy is used as the ball is thrown upward. Gravity comes into effect as the ball falls towards the ground.
Week 4
The swaying of a pendulum on a clock is an example of potential and kinetic energy. Potential energy is being stored as the pendulum reaches the top. Potential energy is being transfered into kinetic energy as the pendulum goes back down. Kinetic energy reaches its highest point at the bottom, before the pendulum starts back up. As it starts back up, kinetic energy is lost, and potential energy is gained again.
Week 5
A basketball being shot is another example of potential and kinetic energy. When a basket ball is shot, the potential energy being used to shoot the ball is transfered into kinetic as the ball is shot into the air. As it reaches its highest peak, potential energy is stored up for a very short amount of time. As gravity pulls the ball towards the ground, it gains kinetic energy.
Week 6
A paper floating to the ground is an example of gravity and mass. It floats to the ground slower than a baseball, because it has less mass. Therefore, it floats on the air, while a baseball will just fall to the ground.
Week 7
One very obvious compound machine that we use in our lives is a bike. A bike uses three simple machines; a pulley, gears, and a wheel and axle. The gears turn the pulley and rotate the bike chain around it. The rotation of the chain spins the wheel and axle, allowing the bike to move forward.
Week 8
A grandfather clock is a complex compound machine. It uses gears, levers, and pulleys. The gears inside the clock rotate the hands (levers) around the clock face. The pendulum, also a lever, is controlled by the gears as well. The clock weights are lifted up and lowered down by a pulley.
Week 9
Nearly every object that we use on a daily basis is either a simple or compound machine. One of them is a bathtub. The water faucet can be either a wheel and axle or a lever. The base of the tub is slightly slanted so that the water will flow down towards the drain, therefore, it is an inclined plane.
Week 10
When your open a book, you are using a second class lever. With a second class lever, the fulcrum is at the other end of the where the load is. With a book, the side you are opening is the load, and the seal of the book is the fulcrum.
Week 11
A sinking ship is a lever. For example the bow going down under the water is the load. The water line is the fulcrum, and the stern is the other side of the lever being lifted out of the water.
Week 12
The strumming of a guitar is an example of sound waves. When the largest string is plucked, low frequency sound waves are created, and when the smallest string is plucked, high frequency sound waves are created. These waves are what generate the sound that you here. If a string is tightened, the pitch will become higher, and if it is losened, the pitch will become lower.
Week 13
A spot light is an example of non-diffraction. Diffraction is what causes waves to spread out instead of heading in a straight line. With a spot light, diffraction still comes into play, but it is reduced.
Week 14
A harmonica is an example of sound waves. When a harmonica is played, the air you breath into vibrates the metal plates, each a different length. The longest has the lowest pitch, and the shortest has the highest.
Week 15
An example of inertia is a car breaking hard. As the car stops, you lurch forward for a moment. This is because inertia is continuing to pull you forward in the direction that the car is going, even though the car has stopped.
Week 16
A slinky is an example of a wave. When a slinky is tapped, you notice that the vibrations of the metal are passed down throught the slinky in a wave, or chain reaction.
Week 17
A Walky-Talky is a machine that transmits radio waves into sound energy. When you push the "talk" button, you are sending radio waves to the machine on the other end. The radio waves carry the sound of your voice, and are transmitted into sound energy by the other machine.
Week 18
A strummed rubber band is an example of sound waves. When a rubber band is stretched loosly or far apart, it makes a low sound. When a rubber band is pulled tightly, it makes a higher sound. The difference in pitch is due to different intensities of vibrations.
Week 19
Our seasons are caused by the tilting of earth. As the earth tilts back on it's axis, the southern hemisphere is tilted towards the sun, meaning that they are in summer, and we are in winter. As the earth tilts forward, the northern hemisphere is in summer, and the southern is in winter.
Week 20
The farther a baseball bat is pulled back before making contact with a baseball, the farther the baseball will go. This is because more force (kinetic energy) is being applied to the baseball when the bat is swung back.
Week 21
A bike is a compound machine. It has gears, inclined planes, and wheels.
Week 22
When a pitcher winds up and throws the ball, the ball goes faster because he is applying more force to the ball, there fore it goes faster when he realises it. If he did not wind up, the ball would go much slower.