Helium is a super light gas that makes balloons float and voices sound funny when you breathe it in.
Imagine you have two identical balls. One is filled with air, and the other is filled with helium. The one with helium floats up because helium is lighter than air, like how a leaf floats on water while a stone sinks.
How Helium Feels
If you ever blew up a balloon and watched it float to the ceiling, that’s helium doing its job! It's so light that it pushes upward, making things float. That’s why balloons go up, they're being pushed by helium gas inside them.
Why Voices Change
When you breathe in helium, your voice sounds funny because helium moves faster than air. Your voice vibrations travel through the lighter gas more quickly, changing how your voice sounds, it goes high and squeaky, like a cartoon character!
Helium is also used to make people’s voices sound silly at parties or in science shows, just like magic, but without the word magic.
Examples
- A balloon filled with helium floats because it's lighter than air.
- Helium is used in party balloons and birthday hats.
- Kids love inhaling helium to make their voices sound funny.