Chemistry Tutorial: Atomic & Molecular Mass

This chemistry tutorial video shows atomic and molecular mass. It explains to school science students how scientists discovered the ratio of masses of different kinds of atoms. This scale was used to define the Atomic Mass of an element which can be found on the Periodic Table.

Initially the Atomic Mass of an element was defined as its mass compared to the mass of hydrogen taken as 1. However, this has been modified to its mass compared to the mass of a carbon atom taken as 12. Atomic Masses can be used to calculate the Molecular Mass of a molecule simply by adding the Atomic Masses as shown in the molecular formula.

[Note: My good friend Charmaine spotted a mistake at about the 5 minute mark. Can you spot it too?]

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About Atomic School:
Atomic School supports the teaching of Atomic Theory to primary school & science students .
We provide lesson plans, hands-on classroom resources, demonstration equipment, quizzes and a Teacher's Manual to primary school teachers. Animated videos that clearly explain the scientific ideas supports learning by both teachers and students. As a teacher, you don't have to look anywhere else to implement this program.

Our work has been verified by science education researchers at the University of Southern Queensland, Dr Jenny Donovan and Dr Carole Haeusler, who confirm that primary students are capable of learning much more complex scientific concepts than previously thought, and crucially, that they love it. Students run to class!

The program has been trialed in Australian schools as well as schools in the Philippines, Iran and India. It is conducted as holiday workshops at the Australian Nuclear Science and Technology Organisation, the Queensland Museum as well as the World Science Festival.
It has attracted wide media interest, including TV, radio and print, and the research data has been presented at prestigious American Education Research Association and Australian Science Education Research Association conferences.

Atomic Theory underlies all the other sciences- genetics, electronics, nanotechnology, engineering and astronomy- so an early understanding will set them up for a more successful learning sequence for all their science subjects, and support their mastery of mathematics as well. We also have extension programs that cover Biology, Physics and Astronomy to an equal depth.
About Ian Stuart (Email: ian@AtomicSchool.com):
The founder of Atomic School, Ian Stuart, taught Chemistry and Physics for 25 years at senior levels before he realized that his 8-year old son, Tom, could understand Atomic Theory at a much deeper level than he expected. After visiting Tom's class at school, he discovered that his peers could also grasp the abstract scientific concepts, as well as apply it usefully to the real world.

Ian then developed a program to teach the advanced concepts of high school Chemistry, Physics and Biology to students 10 years younger than they normally would. He found that this engaged their interest in modern science early, and sustained it through to high school and beyond. It also sets them up for future success in their academic and career paths.

Ian has a Bachelor's Degree in Chemistry from the University of Queensland and a Master's degree in Electrochemistry from the University of Melbourne.
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Video transcript:
This video explains how scientists discovered the ratio of masses of different kinds of atoms. This scale was used to define the Atomic Mass of an element which can be found on the Periodic Table. Initially the Atomic Mass of an element was defined as its mass compared to the mass of hydrogen taken as 1. However, this has been modified to its mass compared to the mass of a carbon atom taken as 12. Atomic Masses can be used to calculate the Molecular Mass of a molecule simply by adding the Atomic Masses as shown in the molecular formula.

Tags: Chemistry, Physics, John Dalton, atoms, elements, molecules, Atomic Mass, Molecular Mass, Periodic Table, grams, amu, H2O, NH3, CO2, water, methane, ammonia, chemical reaction, chemical experiment, mass, ratio, hydrogen, compared to hydrogen, compared to carbon, nitrogen, carbon, oxygen.

Видео Chemistry Tutorial: Atomic & Molecular Mass канала AtomicSchool