Across
- 6. Energy in motion
- 7. Direct movement
- 8. bond Atoms that join because of polar charges
- 10. Energy that is inactive or stored.
- 12. The building block of an element
- 14. The "matter" of all substances
- 15. Molecules are broken down
- 20. Combines to help repair tissue
- 21. Have a positive charge
- 22. That which dissolves
- 23. Have a bitter taste
Down
- 1. Extremely weak bond
- 2. Number of electrons in outer shell
- 3. Bonding or releasing
- 4. Anything that takes up space and has mass
- 5. Large and diverse group of organic compounds
- 7. Simple sugars
- 9. Atoms of the same element that have a different atomic number
- 11. Massless, does not take up space
- 13. The sum of all physical and chemical reactions that occur in the body
- 16. Atoms with electrical "charges"
- 17. Uncharged or neutral
- 18. Number of electron shells
- 19. Have a sour taste
- 20. That which is dissolved