Everything we can see and touch, and quite a lot that we can’t as well, is made of tiny particles called atoms. Some substances, like particles of this iron, contain only one kind of atom. Iron is an ...

You may have noticed that the rock formations are very different colors. The rock formations on the left are from Red Rock State Park in Texas, and on the right is El Capitan Mountain in Yosemite ...

This article brings you the CBSE Class 9 Science Notes for Chapter 3 - Atoms and Molecules. These chapter notes are prepared by the subject experts and cover every important topic from the chapter. In ...

Chemical reactions occur when elements or compounds combine and create new compounds. Elements are substances that contain only one type of atom and are represented by unique symbols on the periodic ...

The sequel to Theodore Gray's acclaimed chemistry iPad app The Elements leads you into the wonderful world of molecules. Michelle Starr is CNET's science editor, and she hopes to get you as enthralled ...

"Molecules That Matter," the first exhibit in the changing gallery at the Chemical Heritage Foundation's (CHF's) new museum, looks at 10 organic compounds and consequences they have had on society ...

There are lots of different substances but only just over a hundred elements. An element is a substance that is made up of only one kind of atom. The atoms in a particular element are the same as each ...

The film discusses the classification of matter into homogeneous and heterogeneous types, focusing on elements, compounds, and mixtures. It explains the properties of two elements, iron and sulfur, ...