1. Science - the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
2. Technology - the application of scientific knowledge for practical purposes, especially in industry.
3. Methods - a particular form of procedure for accomplishing or approaching something, especially a systematic or established one.
4. Chemistry - the branch of science that deals with the identification of the substances of which matter is composed, the investigation of their properties and the ways in which they interact, combine, and change, and the use of these processes to form new substances.
5. Scientific Methods - a method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.
