Across
- 3. the branch of science concerned with the nature and properties of matter and energy. The subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms.
- 4. each of two or more words having the same spelling or pronunciation but different meanings and origins.
- 7. an oblong frame with rows of wires or grooves along which beads are slid, used for calculating.
- 9. a natural or artificial hollow into which something fits or in which something revolves.
- 10. a very large mammal with thick skin, especially an elephant, rhinoceros, or hippopotamus.
Down
- 1. very great in amount, scale, or intensity.
- 2. the study of the fundamental nature of knowledge, reality, and existence, especially when considered as an academic discipline.
- 5. make (someone's hair or clothes) untidy or messy.
- 6. old and torn; in poor condition.
- 8. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.