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Atomic number and Mass number of an atom - Science

This is a science video that explains Atomic Number and Mass Number of an atom and how they are linked to the electrons, protons and neutrons of an at.

Psychology : Doctorate Degrees: Are They Worth It?

Psychology infographic & Advice Doctorate Degrees: Are They Worth It? Image Description Doctorate Degrees: Are They Worth It?

American Chemical Society, Chemistry for Life ® FREE resources for teaching Middle School and High School Chemistry.

Teach the big ideas about energy in your high school chemistry classroom! Exercises, lab investigations, videos and demos focus on the fundamentals of chemical, mechanical, nuclear and gravitational energy.

Great lesson on research bias.  It has one inappropriate abbreviation, watch first before showing to students.

Battling Bad Science: Doctor and epidemiologist Ben Goldacre shows us, at high speed, the ways evidence can be distorted, from the blindingly obvious nutrition claims to the very subtle tricks of the pharmaceutical industry.

I never knew why they represented atoms as spherical, until this. Just the movement of protons and ekectrons around it! Wonder if my teachers said that and i missed it. I want to learn more science

Atoms The Core of All Matter, from the Golden Library of Knowledge, Illustration by Norbert Van Houten.

The Smallest Drugs Here is the updated version of the "smallest drugs" collection that I did the other day. Here are the criteria I used: the molecular weight cutoff was set, arbitrarily, at aspirin's 180. I excluded the inhaled anaesthetics, only allowing things that are oils or solids in their form of use. As a small-molecule organic chemist, I only allowed organic compounds - lithium and so on are for another category:

Here are the criteria used: the molecular weight cutoff was set, arbitrarily, at aspirin's excluded the inhaled anaesthetics, only allowing things that are oils or solids in their form of use.

Creationist Group Demands Airtime on "Cosmos" for Sake of "Scientific Balance" |   "They wouldn’t even consider us plausible at all,” creationists lament.

Neil deGrasse Tyson Squashes Creationist Argument Against Science on National TV Watching the Christian Right struggle to counter "Cosmos" each week is like watching a frightened, cornered animal that knows it's about to die.

Illustration showing that almost all of the weight of an atom comes from the protons and neutrons.

Science chemistry Illustration showing that almost all of the weight of an atom comes from the protons and neutrons.

Dark snow: from the Arctic to the Himalayas, the phenomenon that is accelerating glacier melting

Dark snow: from the Arctic to the Himalayas, the phenomenon that is accelerating glacier melting

A Call to Arms: An Invitation to Demand Action on Climate Change When world leaders gather in New York this fall to confront climate change, tens of thousands of people (and maybe you) will be there to demand they take action before it's too late

How to be your best in 5 minutes or less. Improve your confidence in less time than it takes to finish a latte. In college, real, usable success looks like: Professors who respect and like you, projects that you make are meaningful and hae impact outside of school, 4 years of confidence in your studies, graduating with marketable skills and career prospects, and forming a circle of friends who are ambitious and talented. How do you accomplish all of that? CONFIDENCE. And this post tells you…

How to be Your Best in 5 Minutes

How to be your best in 5 minutes or less. Improve your confidence in less time…

The Federalist 6 < The Complete Federalist Papers < 1786-1800 < Documents < American History From Revolution To Reconstruction and beyond

The Complete Federalist Papers < < Documents < American History From Revolution To Reconstruction and beyond

The Story of Francis and Edith Schaeffer Part 1/3

The Story of Francis and Edith Schaeffer Part

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