Across
- 4. the graph that shows all the elements
- 8. the chemical element of atomic number 88, a rare radioactive metal of the alkaline earth series
- 9. how far something was
- 12. the chemical element of atomic number 92, a dense gray radioactive metal used as a fuel in nuclear reactors.
- 13. how fast something went
Down
- 1. something you need to drink in your everyday life
- 2. the chemical element of atomic number 5, a nonmetallic solid.
- 3. a metallic chemical element of the alkaline-earth group that occurs naturally only in combination and is essential to cellular functions in all known organisms
- 5. smallest unit of an element
- 6. how much something weighs
- 7. the chemical element of atomic number 22, a hard silver-gray metal of the transition series, used in strong, light, corrosion-resistant alloys.
- 10. a subject in school
- 11. how long something took