Across
- 3. subatomic particle with no charge
- 4. a stream that feeds into a larger river, lake, etc.
- 7. what elements make up water
- 9. the crest of land that separates one watershed from another
- 11. when water molecules attract to each other
- 12. the state where water molecules are close to each other buy moving around
- 13. the state where water molecules are moving quickly and freely
- 16. land that is saturated with water for at least part of the year
- 18. a molecule that has electrically charged sides, like a water molecule
- 21. measures how acidic or alkaline a substance is
- 22. where protons and neutrons are found in the atom
- 23. the basic building block of matter
- 24. measures the amount of salt in water
Down
- 1. subatomic particle with a negative charge
- 2. the process where an excess of nutrients in the water causes an excessive growth of algae
- 5. all the factors that are living, like animals and plants
- 6. all the factors that are non-living, like the sun and water
- 8. the name of our watershed in Virginia
- 10. measures the clarity of water
- 14. the land area that drains water to a common body of water
- 15. Besides the Potomac, Rappahannock and York, one of the rivers in Virginia that is part of our watershed
- 17. when water molecules attract to different substances
- 18. subatomic particle with a positive charge
- 19. the place where the salt water from the ocean and the fresh water from the rivers mix
- 20. the state where water molecules are vibrating close together
