Why does helium make your voice go squeaky?
How does helium make a person sound high pitched?
What makes helium flammable? How can you describe helium? What can you do to make helium non flammable? What are the consequences of getting high on helium? Is Helium considered an inert gas? If not, why? What is the main source of helium? Why do helium balloons deflate? What would happen if we run out of helium? What is helium 3? Is helium an element, mixture or a compound? How would it be like to breath liquid oxygen if the temperature didn't affect you? Can we use helium balloons under water? What would be the benefits if we discovered an element lighter than helium but it exists as a solid in room temperature? Any possible uses? Where do helium-filled balloons go once they are released into the air? When we run out of Helium, what will we use for balloons? Why is helium gas used to fill balloons instead of hydrogen gas? Is a high pitch sound a loud sound? What would most likely happen to us if we ran out of helium completely? What will happen when we finally run out of helium? Energy required to ionize helium? What are main source of helium gas? What is the molar mass of helium? I made a plasma vortex at my home, but why doesn't it produce a zapping sound like at time when we see sparks and does the air nearby it ionizes? I made a plasma vortex at my home, but why doesn't it produce a zapping sound like at time when we see sparks and does the air nearby it, ionizes? How do helium-3 and helium-4 differ? When a balloon pops, what are the principles behind the popping sound? Why do MRI machines need helium? Does air compressor make air liquid? How can oxygen be a liquid? If you released a party balloon filled with helium outside, what would its fate be?