Across
- 2. pure substance made from only one type of atom
- 5. The small, positively charged center of an atom containing protons and neutrons
- 8. The spinning of Earth on its axis that causes day and night
- 10. The movement of one object around another, such as Earth around the sun, which causes seasons
- 14. this type of element is shiny, malleable, ductile, and a good conductor of electricity
- 15. the term for the electrons on the outermost energy level of an atom
- 16. number of protons is also known as the ____________(two words)
- 19. This eclipse occurs when the Moon passes directly between the Sun and Earth, casting a shadow on Earth
- 20. this type of element has both properties of metals and nonmetals
- 21. positively charged particle that gives an atom its identity
- 23. The phases where the illuminated side of the moon appears to be growing larger
- 24. The measurement of how much mass is contained in a given volume; it is the main driver of deep ocean currents
Down
- 1. this type of element is dull, brittle, and is a good insulator
- 3. two or more atoms joined together by a chemical bond
- 4. name for the model of an atom that shows all electrons and energy levels
- 6. name for a model of an atom that shows only valence electrons and the element symbol (two words)
- 7. The smallest particle of an element; the basic building block of matter
- 9. This eclipse occurs at a full moon when Earth is directly between the moon and the sun
- 11. negatively charged particle that moves around the nucleus of an atom
- 12. particle with no charge that adds to the mass of an atom
- 13. two or more different substances physically mixed together
- 17. a pure substance with two or more different atoms joined together in a chemical bond
- 18. sum of the protons and neutrons make up the _____________ (two words)
- 22. The phases where the illuminated side of the moon appears to be getting smaller