Across
- 4. an introduction of a report that gives background information
- 6. an atom or group of atoms with a charge
- 7. we do this to an equation because we must observe the conservation of matter
- 8. two words CaCl2
- 11. the particle that is negatively charged in a atom
- 12. the particle in a nucleus that has not charge
- 13. this element is needed for most living things
Down
- 1. a mixture that is has an even distribution of material
- 2. this is the part of the lab report that might contain the question and hypothesis
- 3. a positively charged ion
- 5. a group of two or more elements that are bonded
- 9. single building block of matter
- 10. a negatively charged ion