Challenge #1 What’s going on? Phase Changes Challenge #1 What’s going on? Shannon Ventresca 2014

Which phase change is taking place? You are heating water on the stove and you see steam. 2. You see a smoky substance coming off of dry ice. 3. You notice your iced tea glass is wet on the outside. 4. You leave a case of water in the car, but the temperature dropped below zero that night. 5. You forget the ice cream in the trunk, and it’s 90 degrees out

evaporation sublimation condensation freezing melting The answers are… You are heating water on the stove and you see steam. evaporation 2. You see a smoky substance coming off of dry ice. sublimation 3. You notice your iced tea glass is wet on the outside. condensation 4. You leave a case of water in the car, but the temperature dropped below zero that night. freezing 5. You forget the ice cream in the trunk, and it’s 90 degrees out melting