Essays Tagged: "atoms and molecules"

Introduces innovations in nano-technology.

Nanotechnology is a little known science that deals with building things out of atoms and molecules. The idea first came about in 1959, when Richard Feynman, a physicist, stated in ...

(3 pages) 116 0 3.0 Jun/2003

Subjects: Science Essays > Technology

Chemical and Physical Matter and its Properties.

tter and its PropertiesBasic Building Blocks of MatterThe fundamental building blocks of matter are atoms and molecules. These make up elements and compounds. An atom is the smallest unit of an elemen ... s a pure substance made of only one kind of atom. A compound is the substance that is made from the atoms of two or more elements that are chemically bonded. Water is an example of a compound because ...

(3 pages) 85 2 4.3 Oct/2003

Subjects: Science Essays > Chemistry

The Aurorae- what causes the beautiful light displays. What impact does it have on Earth?

stretches high into the atmosphere. In an auroral display,charged particles from the Sun strike the atoms and molecules of the Earth'satmosphere, causing them to glow. This stream of particles is call ... cordingto both the electrical state and concentration of the gas. When solar particlesstrike oxygen atoms, the atoms glow either green or red. In the loweratmosphere, there is mostly a green glow beca ...

(2 pages) 42 0 3.3 Dec/2003

Subjects: Science Essays > Astronomy

Atoms, Molecules and Chemical Reactions

Atoms, Molecules and Chemical ReactionsMatter is anything that has mass and takes up space. Matter i ... mass and takes up space. Matter is made up of atoms and molecules. Gases are matter made of single atoms or molecules that are very far apart, moving rapidly. Liquids are made up of atoms or molecule ... , but they still move a lot so liquids flow and take shape of the container they are in. Solids are atoms and molecules that are jammed closely together, they are still moving but they don't change th ...

(2 pages) 53 0 3.9 Feb/2004

Subjects: Science Essays > Chemistry

The History, Theory, and Application of Avogadro's Principle

f Definite Proportions, was established in the emerging chemistry field. In 1808, when the terms of atoms and molecules were not clearly identified, Dalton proposed in his publication, New System of C ... not clearly identified, Dalton proposed in his publication, New System of Chemical Philosophy, that atoms were the combining units in chemical reactions, and when two elements combined forming a compo ...

(3 pages) 33 0 3.0 Apr/2004

Subjects: Science Essays > Biology

Matter Cycles

e water, nitrogen, phosphorus, and carbon are the most important ones! These cycles are composed of atoms and molecules which are constantly moving between living and nonliving systems.Carbon is a bas ... c building block of all life on Earth because it has the ability to form long chains to which other atoms can attach. So is Nitrogen since is the critical element in production of proteins, nucleic ai ...

(1 pages) 32 0 2.0 Sep/2004

Subjects: Science Essays > Environmental Science

AP Biology Chapter 2 Outline

inute quantities.a. Iron is an example of a trace element that is required by all forms of life.II. Atoms and MoleculesA. Atomic structure determines the behavior of an element.1. An atom is the small ... perties of an element.a. Each element consists of a certain kind of atom that is different from the atoms of any other element.b. Atoms are symbolized with the same abbreviation used for the element m ...

(5 pages) 37 1 4.5 Feb/2005

Subjects: Science Essays > Biology

Molecular Theory

ysicists who are credited for the Kinetic Molecular Theory of Gases. By the mid 1800's the ideas of atoms and molecules seemed less strange than they did in 1800 so the assumptions built upon imaginin ... a large number of discreet molecules. Each of these molecules may consist of one atom or a group of atoms. These molecules are in constant, random motion and move in move in all directions with many d ...

(1 pages) 656 0 0.0 Oct/2001

Subjects: Science Essays > Chemistry

Diffusion, Osmosis, and Water Potential

(1 pages) 28 0 5.0 Sep/2008

Subjects: Science Essays > Biology

The Impact of Nanotechnology in Our Lives

The Impact of Nanotechnology in Our Lives"Nanotechnology is science and engineering at the scale of atoms and molecules. It is the manipulation and use of materials and devices so tiny that nothing ca ... e harmless by the use of nanobots. They have fingers built from nanotubes, which can manipulate the atoms in an oil spill to render it nontoxic. Because of their small size, nanoparticles have more su ...

(6 pages) 60 1 4.5 Mar/2009

Subjects: Science Essays > Biology