Rewrite setences ~ Help !!!

the hitting of / Gas pressure / against container walls / moving particles / is due to Gas pressure is due to the hitting of moving particles against container walls

2. the air pressure outside / is sucked , / When an empty soft drink box / it collapses / the gas pressure / inside the box / is lower than / because When an empty soft drink box is sucked, it collapses because the gas pressure inside the box is lower than the air pressure outside.