1. What is freezing, melting, condensation and evaporation? 2. What happens to the particles during freezing and melting? 3. What happens to the particles during condensation and evaporation? 4. Give one example of freezing, melting, condensation and evaporation in everyday life.
Answer (1)
Answer:1. **Freezing, Melting, Condensation, and Evaporation:** - **Freezing:** The process where a liquid turns into a solid as its temperature decreases. - **Melting:** The process where a solid turns into a liquid as its temperature increases. - **Condensation:** The process where a gas turns into a liquid as it cools down. - **Evaporation:** The process where a liquid turns into a gas as it heats up.2. **Particles during Freezing and Melting:** - **Freezing:** During freezing, the particles in a liquid lose energy, move more slowly, and arrange themselves into a fixed, orderly structure, forming a solid. - **Melting:** During melting, the particles in a solid gain energy, move more freely, and break away from their fixed positions, becoming a liquid.3. **Particles during Condensation and Evaporation:** - **Condensation:** During condensation, the particles in a gas lose energy, move more slowly, and come closer together to form a liquid. - **Evaporation:** During evaporation, the particles in a liquid gain energy, move faster, and spread apart to form a gas.4. **Examples in Everyday Life:** - **Freezing:** Ice forming in a freezer. - **Melting:** An ice cube melting into water at room temperature. - **Condensation:** Water droplets forming on the outside of a cold glass of water. - **Evaporation:** Puddles drying up on a sunny day.
