The law of conservation of mass might depend on Einsteinian physics when nuclear reactions come into play, but less lofty, more common examples occur in our everyday lives with chemical and ...

Miss Roberts: OK, so we are looking at the conservation ... the mass is conserved. Katie: Wow. That's amazing. That's blown my mind, Miss Roberts. It really has. Here's a couple more examples ...

Humans alive today are witnessing the beginning of the first mass ... conservation of life on Earth. But, on the other hand, there are also very many inspiring stories of success, and examples ...

The Earth is losing species at a rate comparable to the mass extinction of the dinosaurs ... The report contains several examples of conservation measures taken by humans that have improved ...