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...energy. Similarly a human baby grows into an adult by digesting and metabolising food and drink. The parents in each case pass to their progeny, or offspring, the information and specification for building cells from materials around them. This information lies in the genetic material, or DNA, which is found in the chromosomes within the nucleus and which is transmitted...

...energy for the atoms to move relative to each other. The quenched material is a disordered solid, known as an amorphous solid or glass (Figure 3). By contrast, slow cooling of a liquid allows atoms to arrange themselves into an ordered pattern, which may extend over a huge number of atoms. This kind of solid is called crystalline. So if a melt of a given composition (e.g....

...energy recovery.) Strong supporting evidence needs to be provided, in the form of references to critically reviewed research and published data, for any such studies. This is often necessary when scientists produce reports for stakeholders, such as the public or government. Question 4 Plastics and oil Timing: Allow about 5 minutes Currently, most plastics are synthesised...