Question: Joanna's glasses "fogged up" when she went into the bathroom after her sister finished her shower. What caused the "fog" to form on her glasses?
Reference answer: The glasses were cooler than the water vapor in the bathroom.

Student answer: After Joanna's sister came out of the bathroom there was water vapor in the room. And when the water vapor touched Joanna's cold glasses the water vapor turned into condensation.

Student answer: Condensation caused the fog to form on her glasses. The warm air touched her cold glasses and turned back into water.

Student answer: The evaporated water in the air condensed on her glasses.

Student answer: The water in the shower was probably hot and it evaporated and turned into water vapor then to condensation.

Student answer: The warmness of her shower caused the condensation on her glasses.

Student answer: When water evaporates the water vapor would stick on something cold like a window.

Student answer: The steam from the hot shower got on her glasses and they call that fog.

Student answer: The hot water from her sister's shower is attracted to mirror type things and went onto her glasses.

Student answer: Well when water vapor cools it condenses. Her glasses were cool so water vapor condensed on them.

Student answer: Condensation caused her glasses to fog up.

Student answer: The hot air from the shower touched the cold window and that made condensation.

Student answer: Her sister took a hot shower so when the water vapor touched her lenses, condensation formed.

Student answer: When water vapor touches a cold surface it creates condensation.

Student answer: Well it fogged up because her glasses were probably cold and when condensation touches a cold surface it fogs up.

Student answer: When a cold surface hits a warmer surface it fogs up.

Student answer: The fog is from water vapor in the air.

Student answer: Condensation.

Student answer: When a hot vapor touches a cold surface it turns into condensation.

Student answer: Her glasses might have been room temperature or cold but when she went in a hot room her glasses fogged up.

Student answer: Water vapor did.

Student answer: When water vapor touches a cooler surface it creates condensation. That is what caused it.

Student answer: Just the humidity, I think.

Student answer: When warmer air touches a colder surface, it fogs up.

Student answer: What caused it was the water vapor and the steam went together and steam's hot and her glasses are room temperature so when the hot steam and water vapor hit her glasses it formed condensation.

Student answer: The condensation happened because water vapor was hitting a cooler surface than itself glasses, therefore turning back into tiny water droplets.

Student answer: When the water vapor touches a cool surface, the glasses it will create condensation.

Student answer: The fog was formed by condensation. Condensation is when water vapor hits a cool surface glasses it forms a fog. This fog is called condensation.

Student answer: The fog was caused to form on her glasses because her glasses were a cold surface.

Student answer: When water vapor touches a colder surface little water droplets form.

Student answer: It caused from hitting a cold surface which is called surface area.

Student answer: The fog on her glasses was condensation. It happened by hot water vapor touched a cooler surface her glasses. It then turned into liquid form again.

Student answer: The fog formed on her glasses because the water that had evaporated from her sister's shower was hotter than the air around it so it went to a cooler surface and turned into fog.

Student answer: It was cold surface on her glasses so condensation hit her glasses.

Student answer: Evaporating and condensing into water vapor.

Student answer: The fog formed on her glasses because the water from the shower was hot and the glasses which were cold.

Student answer: The water vapor steam turned back to a liquid.

Student answer: On Mrs. Kleese's glasses the steam in her coffee was suffocation.

Student answer: The water and the air formed on her glasses because the water evaporated from the shower and the water went on her glasses and the air did too so that is what happened to her glasses.

Student answer: The water caused the fog.

Student answer: When the air from the bathroom touched the glasses it turned back into a liquid, because the glasses were cool.

Student answer: Heat caused it.

Student answer: When something hot hits something cold it turns into fog.

Student answer: The water.

Student answer: The hot steam hit the cool surface of Joanna's glasses.

Student answer: The heat the shower makes things fog.

Student answer: They were glass.

Student answer: Because of the hotness of the water. It evaporated.

Student answer: The hot steam from the shower.

Student answer: Because it was hot in the bathroom.

Student answer: The steam in the shower flew to her glasses and formed condensation.

Student answer: The fog attaches to mirrors and glasses stuff like that.

Student answer: The warmness.

Student answer: Glass was cold but it gets hot.

Student answer: Her glasses were cold. And the beads of water collect on the glasses.

Student answer: When the steam from the shower met the cold air it condensed on her glasses.

Student answer: The shower's water evaporated and then it condensed onto Joanna's glasses.

Student answer: The water vapor that was in the air touched the cool surface of Joanna's glasses, so the water vapor condensed on her glasses.

Student answer: Condensation.

Student answer: When the temperature drops.

Student answer: The fog formed on her glasses because of condensation.

Student answer: Her glasses were a different temperature so the vapor stuck to them.

Student answer: Because after shower, it can be smoking because beads of water evaporation.

Student answer: She had fog on her glasses because her glasses had a colder surface than the water vapor from the shower so they fogged up.

Student answer: Condensation, when water condenses and touches a cool surface it becomes water vapor.

Student answer: Condensation.

Student answer: Her glasses were a cold surface and condensation rests on cold objects.

Student answer: Her sister's shower made condensation so then the condensation formed on her glasses.

Student answer: Because the temperature was too hot and because the surface area causes the water to turn into water vapor.

Student answer: The reason fog came up is because the water vapor gas from the steam from her sister's shower just like a mirror would have.

Student answer: It formed because hot water and cold water came together to form fog.

Student answer: The steaming hot water is fogging up her glasses.

Student answer: Water vapor and liquid is what caused the foam on her glasses.

Student answer: It is condensation is tiny droplets that fogs glasses.

Student answer: When cold and warm hit together.

Student answer: What caused the fog to get on her glasses was heat from the shower.

Student answer: Water vapor in the air touching a cool surface, and turning back into tiny beads.

Student answer: Because of water vapor.

Student answer: When hot water is on it forms condensation on the mirrors, so it formed on her glasses too.

Student answer: The hot water's steam touched the cool surface of her glasses.

Student answer: The water went onto the mirror it stuck there for awhile it caused condensation.

Student answer: Because her glasses were in the shower and it got wet.

Student answer: When the hot water is on forms condensation.

Student answer: The glass are most likely cold so when she enters a warm room all the water goes to her glasses.

Student answer: Her glasses were colder than the air temp.

Student answer: Condensation.

Student answer: If it is cold outside in hot inside.

Student answer: It condensed to some areas.

Student answer: Hot water.

Student answer: Because when water gets heated it turns into water vapor and there is no clouds so the water to make rain so that is how come the fog was on her glasses.

Student answer: Because when glasses mixes with steam the steam fogs up the glass on the way up.

Student answer: It caused because of the hot heat of the shower.

Student answer: When the warm water vapor collided with the cool surface of her glasses, it condensed.

Student answer: How it was caused by the steam and by condensation.

Student answer: The warm water vapor touching the cold glasses.

Student answer: Her glasses surface tension.

Student answer: The hot water from the shower hit the glass on the glasses that were cold hit together it formed fog!

Student answer: Water being hot.

Student answer: Because when something cold touches room temperature it forms condensation.

Student answer: It is when hot water is on the glasses and water vapor likes hot water so it sticks and makes condensation.

Student answer: The glass was cold so when warm water vapor hits it is condensation.