Chemical Reactions

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Across
  1. 2. The process of a liquid changing into a gas
  2. 5. When a substance breaks up into tiny pieces and mixes completely with a liquid
  3. 8. The ability to burn
  4. 9. The temperature at which a solid becomes a liquid
  5. 10. This gas is very dense and highly flammable.
  6. 11. To identify an unknown substance, we should examine its ________
  7. 14. Reactivity, conductivity, and flammability are examples of ______ properties.
  8. 15. The amount of space an object takes up
  9. 16. This key bath bomb ingredient reacts when mixed with baking soda
  10. 17. This substance does not naturally exist as a liquid. It turns directly from a solid to a gas.
  11. 19. the smallest piece of matter
  12. 20. This state of matter is less dense than the others.
  13. 23. Water molecules are made of oxygen and _______
  14. 25. a single ingredient made of the same type of matter throughout
  15. 26. The state of matter in which particles have the least energy
Down
  1. 1. We can use our five senses to observe ______ properties.
  2. 3. The third most common gas in the air around us is _______.
  3. 4. Lemonade is an example of a ______ because it has multiple ingredients
  4. 6. The process of a gas changing into a liquid
  5. 7. This highly reactive substance is commonly found in bananas
  6. 9. Multiple atoms bonded together form a ______
  7. 12. The temperature at which a liquid becomes a gas
  8. 13. This common gas makes up about 78% of the air around us.
  9. 18. Sand is ________ in water because it does not dissolve
  10. 21. Solids, liquids, and gases are all states of _____.
  11. 22. The ability of a substance to chemically combine with other substances.
  12. 23. This gas is not flammable and has a low density
  13. 24. Wood has a lower _____ than water, so it tends to float