Los alamos national lab: national security science

Home page for los alamos national lab. tana cardenas. as a child in galisteo, new mexico, tana cardenas liked to walk around the house with a screwdriver, tightening every loose screw she saw.

Bibme: free bibliography & citation maker - mla, apa ...

Bibme free bibliography & citation maker - mla, apa, chicago, harvard

Flinn scientific

Flinn scientific is the #1 source for science supplies and equipment both in and outside the classroom. for more than 40 years, flinn has been the "safer source for science."


Atoms are building blocks atoms are the foundation of chemistry.they are the basis for everything in the universe. as you know, matter is composed of atoms. solids are made of densely packed atoms while gases have atoms that are spread out.


Muscular system - meat on the bones many advanced animals have muscular systems.you know you do. did you know that your muscular system is made up of three different types of muscular tissue?

Chemical nomenclature

The following outline is to help you decide how to name a chemical compound. use it as a flow chart to break down the different systems of naming to determine the name of a compound.

Bomb calorimetry - hope college

Bomb calorimetry. 1. purpose of bomb calorimetry experiments bomb calorimetry is used to determine the enthalpy of combustion, d comb h, for hydrocarbons: c x h y o z (s) + (2x+y/2-z)/2 o 2 (g) x co 2 (g) + y h 2 o (l). since combustion reactions are usually exothermic (give off heat), d comb h is typically negative. (however, be aware that older literature defines the "heat of combustion...

Perkinelmer informatics databases - cambridgesoft

Desktop and enterprise software, solutions and services for chemists and biologists.

Chemical database - chemsynthesis

A freely accessible database of chemical structures and properties. synthesis references for all compounds are also available

Chemical identifier search - chemspider

Search by systematic name, synonym, trade name, registry number, smiles or inchi.

Homepage - echa

The clp regulation ensures that the hazards presented by chemicals are clearly communicated to workers and consumers in the european union through classification and labelling of chemicals.

Introduction to the bryozoa

Introduction to the bryozoa "moss animals" despite the fact that there are about 5000 living species, with several times that number of fossil species, the bryozoa remain largely unknown to most people.

Neuroscience for kids - invertebrate nervous system

Animal: nervous system features/behavior: ameba/paramecium. although the ameba is a single-celled animal, it does appear to be sensitive to the environment.

The hydrogen bomb: the basics | nuclear fusion | science ...

The hydrogen bomb: the basics. a fission bomb, called the primary, produces a flood of radiation including a large number of neutrons. this radiation impinges on the thermonuclear portion of the bomb, known as the secondary. the secondary consists largely of lithium deuteride. the neutrons react with the lithium in this chemical compound, producing tritium and helium.

Naming coordination compounds - department of chemistry

Naming coordination compounds. a complex is a substance in which a metal atom or ion is associated with a group of neutral molecules or anions called ligands.coordination compounds are neutral substances (i.e. uncharged) in which at least one ion is present as a complex. you will learn more about coordination compounds in the lab lectures of experiment 4 in this course.

John dalton - purdue university

John dalton. modern atomic theory (john dalton) experiments with gases that first became possible at the turn of the nineteenth century led john dalton in 1803 to propose a modern theory of the atom based on the following assumptions.

Nearpod lessons: download ready-to-use content for education

No mobile devices in your classroom? no worries! you can enjoy nearpod from any web browser :) create, engage, and assess your students in every lesson!

Efunda: design standards

Design standards homepage. links to all design guidelines or tables in the categories of springs, bearings, plastics, gears, o-rings, screws, gages, gd&t, and design innovation.


Chemexper is a company joining together the areas of chemistry, computer science and telecommunication. the chemexper chemical directory is a free service that allows to find a chemical by its molecular formula, iupac name, common name, cas number, catalog number, substructure or physical characteristics as well as chemical suppliers. this database contains currently more than 10...

Education resources for schools teachers and students ...

Abc education has 4000+ educational games, videos and teaching resources for schools and students. free primary and secondary resources covering history, science, english, maths and more

Advanced level chemistry revision notes uk gce as a2 a ...

Advanced level chemistry study revision notes and quizzes-worksheets. help link indexes for a level courses gce advanced subsidiary level as advanced level a2 ib revise aqa gce a level chemistry ocr gce a level chemistry edexcel gce chemistry salters a level chemistry cie chemistry, wjec gce as a2 a level chemistry, ccea/cea gce as a2 a level chemistry revising...

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