Science - Glossary 0.0 / 5 ? ScienceGeneral TermsGCSEOCR Created by: CarolynCreated on: 11-04-14 20:08 2517491068 Across 1. chemicals manufactured on a small scale (4, 9) 4. an insoluble solid formed during a reaction involving solutions (11) 6. an aqueous compound with a pH value less than 7 (4) 8. a positively or negatively cahrged particle formed when an atom, or groups of atoms, loses or gains electrons (3) Down 1. the number of times that something happens in a set period of time; the number of times a wave oscillates in one second; measured in hertz (9) 2. a chemical reaction that occurs when oxygen joins with an element or compund (9) 5. the process of forming a precipitate by mixing solutions (13) 7. the amount of radioactive decay per second (8) 9. a negatively charged particle that orbits the nucleus (8) 10. an atom of the same element that contains different numbers of neutrons but the same number of protons (7)
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