Vocabulary 4

Element:: A basic buliding block of matter; a pure substance that cannot be broken down into anything simpler.



Compound: A chemical combination of tow or more elements into a single substance.



Atom: The smallest unit of an element that still the properties of the element.



Proton: A particle with a positive chage in theb nucleous of an atom.


Neutron: An uncharged particle in the nucleus of an atom.


electron: A particle whioth a negative charge miving around the nucleus of an atom.


Nucleus: The dense center part of an atom.


Molecule: A group of more than one atom josined together that acts like a single particle.

Vocabulary 3

Mass: The amount matter in an object.


Volume: The amount of space an object takes up.


weight: (on Earth) a measure of the force of gravity between Earth and object.


density: A measure of how tightly packed matter is ; the amount of mass contained in a given volume.



Buoyancy: The upward push on an object by the liquid (or gas) the object is placed in.



Conduct: Allow heat or electricity to flow through readily.



Insulate: Not allow heat or electricity to flow through readily.

States of Matter

1.Solids:Have definite shape.
             Have  definite valume.



2.Liquids:Do neet have de Rinite shape have definite volume.



3.Gases:Donot have shape
             Donot have definite volume.




4.Plasma:Plasma separates the components in the visual and interactive part of the data collection.

CONCLUSION

we demonstrate high sensitivity, real-time visualization of the ureters using the combination of an intraoperative NIR fluorescence imaging system and NIR fluorescent contrast agents. Using invisible NIR light, the ureters can be found, avoided, and/or functionally assessed in the operating setting, without the use of ionizing radiation.

introduction

Actually know more about it than you may think! The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes-- visible light that comes from a lamp in your house andradio waves that come from a radio station are two types of electromagnetic radiation. Other examples of EM radiation are microwaves, infrared andultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays.

Here are the different types of radiation in the EM spectrum, in order from lowest energy to highest.

INVISIBLE LIGHT

Radio waves: are the longest waves of the electromagnetic spectrum.



Microwaves: a microwaves oven uses electromagnetic waves, too. Microwaves are shortwaves radio waves.water in foods absobs microwaves very readily.The energy from the absorbed microwavas speeds up the water molecules inside the food.
 

Infrared light: "just beyond red." infrared waves are next to visible red waves in the spectrum. When you stand in sunlight, it is the Sun's infrared waves that warm you.All objects give off infrared waves.
 
Ultaviolet light:( UV)  light is made up of waves just shorter than visible violet light on the spectrum. UV light causes chemical changes.I can produce vitamin D in your body. You need vitamin D for healthy  bones and teeth.

X rays and gamma rays: the shortest wavelengths of the spectrum  x rays and gamma ray have great penetrating powwer. X rays can pass right through most objects.thicker or denser objects tend to absorb X rays.This means that x rays can produce a picture when they pass through an arm or leg, or your jaw.The denser objects, such as bones and teeth, can show up very clearly on the finished picture.

vocabulary 2

Opaque:Completely blocking linght passing through.

Transparent: letting all light through, so that objects on the othre side can be seen clearly.

Translucent: letting only some light through, so that objects on the other side appear blurry.

Polarization: allowing light vibration to pass trough in only one direction.

refraction: the bending of light rays as they pass from one substance into another.

Convex lens: a lens that curves outward(is thicker at the middle than at the edges) and brigs light rays together.

concave lens: a lens that curves inward ( is thicker at the edges than at the middle) and spreads light rays apart.

vocabulary 2

Opaque:Completely blocking linght passing through.

Transparent: letting all light through, so that objects on the othre side can be seen clearly.

Translucent: letting only some light through, so that objects on the other side appear blurry.

Polarization: allowing light vibration to pass trough in only one direction.

refraction: the bending of light rays as they pass from one substance into another.

Convex lens: a lens that curves outward(is thicker at the middle than at the edges) and brigs light rays together.

concave lens: a lens that curves inward ( is thicker at the edges than at the middle) and spreads light rays apart.

vocabulary 1

Bioluminescence:Light produced by living organisms.

Light ray:A straight-line beam of light it travels outward from its source.

Law of Reflection:The angle of an incoming linght ray equals the angle of the reflected ray.

Concave Mirror:A mirror that curves in on the shiny side.

Convex Mirror:A mirror that curves out on the shiny side.

Vocabulary 1

alvaro: Niño que estudia en la Academia Interamericana de Panama que le gusta el futbol y estudia debes en cuando.