A) Temperature B) Gravity C) Air pressure D) Surface tension
A) Air B) Sugar solution C) Water vapor D) Soap film
A) They pop immediately B) They create a solid C) They disappear D) They form a larger bubble
A) It's higher than the outside pressure B) It's lower than the outside pressure C) It's zero D) It's equal to the outside pressure
A) Foam insulation B) Cooking C) Metal casting D) Concrete mixing
A) Air B) Hydrogen C) Helium D) Carbon dioxide
A) It expands and can pop B) It turns solid C) It stays the same size D) It shrinks and becomes denser
A) It instantly turns solid B) It shrinks without breaking C) The film breaks and the air escapes D) It expands further
A) By disrupting hydrogen bonds B) By adding weight C) By altering density D) By increasing viscosity |