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