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