Corroboree is the aboriginal word for a gathering or meeting. Its meaning however is much more complex. It includes not just the idea of a physical bringing together of tribes, but a meeting of minds and philosophies, of gradual growth-a gathering of momentum as the tribes arrive. virtual corroboree. Project Corroboree is, very aptly, the first project on frogs.org.au to include an online meeting-ground. In the frogs.org.au Community you can share your thoughts on the corroboree frogs and disappearing frogs with users of the site.
Except for in giant molecular substances, like diamond. Van der Waals forces or hydrogen bonds. To melt or boil a simple covalent compound you only have to overcome these two forces that hold the molecules together. You don't need to break the much stronger covalent bonds that hold the atoms together in the molecules.
Other Chemical Bonds The other bonds are not nearly as strong as these first three. Van der Waals and clathrate are bonds between molecules, not atoms as the other types of bonds. Hydrogen bonds refer specifically to the types of bonds formed with hydrogen atoms, such as the water in sweat. Polarized bonds form when two atoms share an electron, but one of the elements has a stronger attraction to that shared electron. Chemical bonds allow all of the elements to combine in a variety of ways to create everything on Earth. Without these chemical bonds life as we know it would not be able to exist as every living organism is created from compounds of elements that work together in specific ways.