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