We were investigating to see if Air had any weight. We blew a balloon up and then debated whether an inflated balloon weighed more than a deflated balloon.
Some pupils thought an inflated balloon would weigh less because when you drop it, it takes longer to reach the ground. Others thought it would be the same as a deflated balloon and some thought it was heavier because it was inflated and the reason it took longer to reach the ground was due to the air resistance.
Some pupils thought an inflated balloon would weigh less because when you drop it, it takes longer to reach the ground. Others thought it would be the same as a deflated balloon and some thought it was heavier because it was inflated and the reason it took longer to reach the ground was due to the air resistance.