Across
- 2. Any substance used in treating disease or illness
- 4. It is just the propagation or storage of energy through a medium or the vacuum, without any transfer of the medium itself
- 5. (in two words) Abbreviation used in chemistry, normally consist of one or two letters from the Latin alphabet and are written with the first letter capitalised
- 8. They are all around you : the food you eat, the clothes you wear. You, in fact, are made up of a wide variety of them
- 12. Anything that takes up space and can be weighed
- 14. Power to do work that produces light, heat, or motion
- 15. It is defined as the electromagnetic radiation with wavelengths between 400 and 800 nm which is visible to the human eye
- 16. The chemical element of atomic number 7, a colourless, odourless unreactive gas that forms about 78 per cent of the Earth's atmosphere
- 17. A fluid (such as air) that has neither independent shape nor volume but tends to expand indefinitely
Down
- 1. It's everything ! It includes all of space, and all the matter and energy that space contains. It even includes time itself and, of course, it includes you
- 3. The smallest unit into which matter can be divided without the release of electrically charged particles
- 5. Science of composition, structure, properties and reaction of matter
- 6. A strong, hard magnetic metal, the chemical element of atomic number 26, much used as a material for construction and manufacturing
- 7. An other word for combustion
- 9. Chemical substance that is made up of only one type of atom
- 10. It is a combination of more than one element
- 11. Science of matter and energy and of interactions between the two
- 13. Something (such as a perfume) compounded to give off a sweet or pleasant odor