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