Flashcards
science 2.3
Cards in this deck (20)
- 1What happens when you heat a solid liquid or gases?Leating a solid , liquid or gas will usually just cause its temperature to increase.
- 2What happens when enough heat is added to a solid?However, if you add enough heat, then the substance will change state.
- 3What happens when enough heat is added to liquid?It will change its state to a gas.
- 4What is melting?Melting is the process in which heat causes a solid to change into a liquid.
- 5What is the melting point?A substance is solid below its melting point and molten [a melted liquid ] above it.
- 6What is evaporation?Evaporation is the process in which heat causes a liquid to change into gas.
- 7What is sublimation?Most substance change from solid to gas in two stages first they melt and then they evaporate.
- 8What is boiling?Boiling is a special case of evaporation.
- 9What is the boiling point?The boiling point of a substance is the temperature at which it changes from a liquid into a gas.
- 10What is the boiling point of a substance?The boiling point of a substance is the temperature at which it change from a liquid into a gas.
- 11What is freezing?Freezing occurs when heat is lost and a liquid change into a solid.
- 12How is snow formed?Snow is another formed of ice.
- 13What is the opposite of freezing?Freezing is the opposite process to melting and so freezing and melting occur at exactly the same temperature.
- 14What is condensation?Condensation occurs when a gas loses heat and change into a liquid.
- 15What is steam?Steam is water vapour that has condensed to form a cloud of tiny but visible liquid water droplets in the air.
- 16What does heat do to the particles in a solid?Heat adds energy to the particles in a solid , making them vibrate faster.
- 17Why do clothes dry on a clothes line and why do they dry faster on hot days?That's why clothes on the line eventually dry , even on cold days, on hot days, clothes dry faster because more water particles have enough energy to break free.
- 18What happens to a substance if enough heat is removed from them?A substance might change state if sufficient heat is removed from it.
- 19What is the freezing point?The freezing point is the temperature at which a liquid change into a solid.
- 20—
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- Flashcards on science 2.3, created by ismaeil alammar on 18/05/2017.
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- ismaeil alammar
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