Emma's dad Rudy talked to us about how hovercrafts work. He brought his hovercraft to school to show us. He put some eggs out on the school field and drove over them but they didn't break! That's because the hovercraft floats on a cushion of air that lets it glide smoothly over the surface below it. Vents of slowly moving, low-pressure air are ejected downwards. The air is trapped beneath the hovercraft by a rubber skirt, which is also called a curtain. Rudy zoomed around the field and even gave the principal a ride. It was very noisy and the wind from the huge fan nearly blew us over!
