8787446
Description
Flashcards by Awis Elkaseh, updated more than 1 year ago
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Created by Awis Elkaseh
almost 7 years ago
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| Question | Answer |
| 1. Why does ice cream drip down your hand ? | 1.as the day warms ice cream,ice,frost etc will melt. |
| 2.what happens when you and heat a solid, liquid or gas ? | 2. It will usually just cause its temperature to increase. |
| 3.what happens when enough heat is add to a solid ? | 3. The substance will change state. |
| 4. What happens when enough heat is add to a liquid ? | 4.It will change to gas. |
| 5.what is melting ? | 5.is when a substance is heated then it changes to a liquid then a gas. |
| 6. what does heat do to particles in a solid? | 6. It lets the particles slide over each other. |
| 7.what is the melting point ? | 7.the temperature at which a solid melts is known as the melting points. |
| 8. what is evaporation ? | evaporation is the process in which a liquid changes into a solid then a gas. |
| 9. are 2 examples of sublimation ? | 9. 1.dry ice 2. iodine |
| 10. What is boiling ? | 10. boiling is a special case of evaporation. |
| 11. what happens when a substance is cooled ? | 11. The temperature drops |
| 12.what happens to a substance if enough heat is removed from it ? | 12. The substance can change state. |
| 13. what is freezing ? | 13. Freezing occurs when enough heat is lost and a liquid changes to a solid. |
| 14. what is frost ? | 13. Frost is dew that has frozen overnight. |
| 15. How is snow formed ? | 15. It is caused by water freezing. |
| 16. what is the opposite of freezing ? | 16. The opposite of freezing is heating. |
| 17. what is condensation ? | 17. condensation occurs when a gas loses enough heat and changes into a liquid. |
| 18. what is our lung full of ? | 18. Our lung is full of water vapour. |
| 19. What is steam ? | 19. steam is a water vapour. |
| 20. what is mercury's melting point ? | 20. Mercury's melting point is -39. |
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