Flashcards
unite 2.3 term 2 week 2
Flashcards do conjunto (20)
- 11. Why does ice cream drip down your hand ?1.as the day warms ice cream,ice,frost etc will melt.
- 22.what happens when you and heat a solid, liquid or gas ?2. It will usually just cause its temperature to increase.
- 33.what happens when enough heat is add to a solid ?3. The substance will change state.
- 44. What happens when enough heat is add to a liquid ?4.It will change to gas.
- 55.what is melting ?5.is when a substance is heated then it changes to a liquid then a gas.
- 66. what does heat do to particles in a solid?6. It lets the particles slide over each other.
- 77.what is the melting point ?7.the temperature at which a solid melts is known as the melting points.
- 88. what is evaporation ?evaporation is the process in which a liquid changes into a solid then a gas.
- 99. are 2 examples of sublimation ?9.
1.dry ice
2. iodine - 1010. What is boiling ?10. boiling is a special case of evaporation.
- 1111. what happens when a substance is cooled ?11. The temperature drops
- 1212.what happens to a substance if enough heat is removed from it ?12. The substance can change state.
- 1313. what is freezing ?13. Freezing occurs when enough heat is lost and a liquid changes to a solid.
- 1414. what is frost ?13. Frost is dew that has frozen overnight.
- 1515. How is snow formed ?15. It is caused by water freezing.
- 1616. what is the opposite of freezing ?16. The opposite of freezing is heating.
- 1717. what is condensation ?17. condensation occurs when a gas loses enough heat and changes into a liquid.
- 1818. what is our lung full of ?18. Our lung is full of water vapour.
- 1919. What is steam ?19. steam is a water vapour.
- 2020. what is mercury's melting point ?20. Mercury's melting point is -39.