Scientific Method The scientific method is a method used by everyone to do experiments and answer questions. It has seven steps: 1) Observation 2) Research Question 3) Collecting variables 4) Hypothesis 5) Procedure 6) Analyze Data 7) Conclusion They all have an important roll, and without one you couldn’t be able to do the other.

Heat Transfer Heat transfer happens in three ways: 1) Conduction-Heat through touch 2) Convection-Heat through a liquid 3) Radiation-Heat through the air Heat can transfer through many way. The picture to the right shows all three types of heat transfer.

Mechanical Waves Mechanical waves are any waves that need a medium to travel. An example of mechanical waves could be sound. Sound needs something to detect it or else no one would no if it’s real or not. The picture to the right shows an ocean wave which is a mechanical wave.

Sound Detection People detect sound by the ear. The sound waves enter the ear and pass the ear drum. Then after they pass the ear drum, then they pass the inner ear. The sound is after detected by cells called cochlea. The cells send the sound to nerves which send them to the brain and the brain identifies the sound.

Bohr Atom Diagram A Bohr Atom Diagram shows the atom and all the electrons it has. The picture to the right shows the Bohr Atom Diagram.

Making sound Sound is made by vibration. When people make sound, it’s because the lungs send air to the wind pipe and into the larnyx. The larnyx have little tubes that vibrate. So the tubes vibrate and sends the sound out the mouth. The picture to the right shows people talking which shows sound making in the body.

Acceleration Acceleration is an increase in speed. Some examples of acceleration could be a car going from 40 to 60 in two seconds. The picture to the right is showing a car accelerating to go faster. The formula for acceleration is Distance / Time.

Force Force is anything that changes the motion of an object. Gravity is an example of force. The picture to the right shows

Gravity Gravity is the magnetic pull the Earth or any planet has. The moon gravitates around the Earth because it pulls on it. That’s the reason we don’t go floating into space because the gravity keeps us bounded to the Earth. The picture to the right shows gravity because the rock is put in a position where gravity will take effect on it.

Atoms Atoms are the basic unit matter. Atoms are made of three different things, neutron, protons, and electrons. The picture to the right shows the nucleus ( consisting of protons and neutron) being surrounded by electrons.

Elements Elements are substances that cannot be broken down anymore. The picture to the right shows all the elements known to man.

Electromagnetic Waves Electromagnetic waves are waves that do not need a medium to travel. The picture to the right shows the Electromagnetic Spectrum, which shows all the electromagnetic waves. The waves are gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves, radio waves.

Homogeneous & Heterogeneous Homogeneous mixtures are mixture where you can’t see the particle. Heterogeneous mixture you can see the particles. Homogeneous- Kool –aid Heterogeneous- salad

Constructive & Destructive Constructive inference is when two waves are the same and are added to make a bigger wave. Destructive is when two waves that are different add together and cancel each other out.

Reflect, diffraction, refraction Reflect is when a wave bounces off an object. Diffraction is when a wave goes in between,around, or through objects. Refraction is when the speed of a wave differs depending on the medium. Reflection-pool Diffraction- wave through an object Refraction- a wave going through air, then water, then the ground.

Newton’s 1 st Law The law states that an object continues to do what it does until a force is put upon it. The picture to the right shows it by someone kicking a ball.

Newton’s 2 nd

Three states of matter The three states of matter are liquid, solid, and gas. Liquid- water Solid-table Gas-smoke